CVE-2020-24977
published 2020-09-04CVE-2020-24977: GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in…
PriorityP434medium6.5CVSS 3.1
AVNACLPRNUINSUCLINAL
EPSS
3.67%
88.5th percentile
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
Affected
30 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | libxml2 | < libxml2 2.9.10+dfsg-6.2 (bookworm) | libxml2 2.9.10+dfsg-6.2 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| msrc | cm1_libxml2_2.9.10-3_on_cbl_mariner_1.0 | — | — |
| netapp | active_iq_unified_manager | >= 7.3 | — |
| netapp | active_iq_unified_manager | >= 9.5 | — |
| nokogiri | nokogiri | >= 0 < 1.11.4 | 1.11.4 |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
| oracle | communications_cloud_native_core_network_function_cloud_native_environment | — | — |
| oracle | enterprise_manager_base_platform | — | — |
| oracle | enterprise_manager_base_platform | — | — |
| oracle | enterprise_manager_ops_center | — | — |
| oracle | http_server | — | — |
| oracle | http_server | — | — |
| oracle | mysql_workbench | <= 8.0.26 | — |
| oracle | peoplesoft_enterprise_peopletools | — | — |
| oracle | real_user_experience_insight | — | — |
| oracle | real_user_experience_insight | — | — |
| xmlsoft | libxml2 | — | — |
| xmlsoft | libxml2 | >= 0 < 2.9.10+dfsg-6.2 | 2.9.10+dfsg-6.2 |
| xmlsoft | libxml2 | >= 0 < 2.9.10+dfsg-6.2 | 2.9.10+dfsg-6.2 |
| xmlsoft | libxml2 | >= 0 < 2.9.10+dfsg-6.2 | 2.9.10+dfsg-6.2 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
nvdv2.06.4MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:P
ghsa7.5HIGH
osv9.1CRITICAL
vendor_ubuntu9.1CRITICAL
vendor_debian6.5LOW
vendor_msrc6.5MEDIUM
vendor_oracle6.5MEDIUM
vendor_redhat6.5MEDIUM
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GHSA
GHSA-w4m9-3rvp-7fhj: GNOME project libxml2 v2
ghsa_unreviewed·2022-05-24
CVE-2020-24977 [HIGH] CWE-125 GHSA-w4m9-3rvp-7fhj: GNOME project libxml2 v2
GNOME project libxml2 v2.9.10 and earlier have a global Buffer Overflow vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 8e7c20a1 (20910-GITv2.9.10-103-g8e7c20a1).
OSV
libxml2 vulnerabilities
osv·2021-06-17·CVSS 9.1
CVE-2017-8872 [CRITICAL] libxml2 vulnerabilities
libxml2 vulnerabilities
Yunho Kim discovered that libxml2 incorrectly handled certain error
conditions. A remote attacker could exploit this with a crafted XML file to
cause a denial of service, or possibly cause libxml2 to expose sensitive
information. This issue only affected Ubuntu 14.04 ESM, and Ubuntu 16.04
ESM. (CVE-2017-8872)
Zhipeng Xie discovered that libxml2 incorrectly handled certain XML
schemas. A remote attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM,
and Ubuntu 18.04 LTS. (CVE-2019-20388)
It was discovered that libxml2 incorrectly handled invalid UTF-8 input. A
remote attacker could possibly exploit this with a crafted XML file to
cause libxml2 to crash, resulting in a denial of service. This
OSV
Nokogiri updates packaged dependency on libxml2 from 2.9.10 to 2.9.12
osv·2021-05-17·CVSS 7.5
CVE-2019-20388 [HIGH] Nokogiri updates packaged dependency on libxml2 from 2.9.10 to 2.9.12
Nokogiri updates packaged dependency on libxml2 from 2.9.10 to 2.9.12
### Summary
Nokogiri v1.11.4 updates the vendored libxml2 from v2.9.10 to v2.9.12 which addresses:
- [CVE-2019-20388](https://security.archlinux.org/CVE-2019-20388) (Medium severity)
- [CVE-2020-24977](https://security.archlinux.org/CVE-2020-24977) (Medium severity)
- [CVE-2021-3517](https://security.archlinux.org/CVE-2021-3517) (Medium severity)
- [CVE-2021-3518](https://security.archlinux.org/CVE-2021-3518) (Medium severity)
- [CVE-2021-3537](https://security.archlinux.org/CVE-2021-3537) (Low severity)
- [CVE-2021-3541](https://security.archlinux.org/CVE-2021-3541) (Low severity)
Note that two additional CVEs were addressed upstream but are not relevant to this release. [CVE-2021-3516](https://security.archlinux.or
GHSA
Nokogiri updates packaged dependency on libxml2 from 2.9.10 to 2.9.12
ghsa·2021-05-17·CVSS 7.5
CVE-2019-20388 [HIGH] Nokogiri updates packaged dependency on libxml2 from 2.9.10 to 2.9.12
Nokogiri updates packaged dependency on libxml2 from 2.9.10 to 2.9.12
### Summary
Nokogiri v1.11.4 updates the vendored libxml2 from v2.9.10 to v2.9.12 which addresses:
- [CVE-2019-20388](https://security.archlinux.org/CVE-2019-20388) (Medium severity)
- [CVE-2020-24977](https://security.archlinux.org/CVE-2020-24977) (Medium severity)
- [CVE-2021-3517](https://security.archlinux.org/CVE-2021-3517) (Medium severity)
- [CVE-2021-3518](https://security.archlinux.org/CVE-2021-3518) (Medium severity)
- [CVE-2021-3537](https://security.archlinux.org/CVE-2021-3537) (Low severity)
- [CVE-2021-3541](https://security.archlinux.org/CVE-2021-3541) (Low severity)
Note that two additional CVEs were addressed upstream but are not relevant to this release. [CVE-2021-3516](https://security.archlinux.or
OSV
CVE-2020-24977: GNOME project libxml2 v2
osv·2020-09-04·CVSS 6.5
CVE-2020-24977 [MEDIUM] CVE-2020-24977: GNOME project libxml2 v2
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
CISA ICS
Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
cisa_ics·2023-12-14
Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
ICS Advisory
##
Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
Release DateDecember 14, 2023
Alert CodeICSA-23-348-10
As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).
View CSAF
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
- Vulnerabilities: Improper Restriction of XML External Entity Reference, Time-of-check Time-of-use (TOCTOU) Race Condition, Command Injection, Miss
Oracle
Oracle Oracle Fusion Middleware Risk Matrix: Web Listener (libxml2) — CVE-2020-24977
vendor_oracle·2022-10-15·CVSS 6.5
CVE-2020-24977 [MEDIUM] Oracle Oracle Fusion Middleware Risk Matrix: Web Listener (libxml2) — CVE-2020-24977
Oracle Oracle Fusion Middleware Risk Matrix: Web Listener (libxml2) vulnerability
CVE: CVE-2020-24977
CVSS: 6.5
Protocol: HTTP
Remote exploit: Yes
Affected versions: Network
Advisory: cpuoct2022 (OCT 2022)
Oracle
Oracle Oracle Fusion Middleware Risk Matrix: SSL Module (libxml2) — CVE-2020-24977
vendor_oracle·2022-04-15·CVSS 6.5
CVE-2020-24977 [MEDIUM] Oracle Oracle Fusion Middleware Risk Matrix: SSL Module (libxml2) — CVE-2020-24977
Oracle Oracle Fusion Middleware Risk Matrix: SSL Module (libxml2) vulnerability
CVE: CVE-2020-24977
CVSS: 6.5
Protocol: HTTPS
Remote exploit: Yes
Affected versions: Network
Advisory: cpuapr2022 (APR 2022)
CISA ICS
Hitachi Energy APM Edge (Update A)
cisa_ics·2021-12-02·CVSS 9.1
[CRITICAL] Hitachi Energy APM Edge (Update A)
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Hitachi Energy APM Edge (Update A)
Last RevisedOctober 18, 2022
Alert CodeICSA-21-336-06
## 1. EXECUTIVE SUMMARY
- CVSS v3 8.2
- ATTENTION: Low attack complexity
- Vendor: Hitachi Energy
- Equipment: Transformer Asset Performance Management (APM) Edge
- Vulnerability: Reliance on Uncontrolled Component
## 2. UPDATE OR REPOSTED INFORMATION
This updated advisory is a follow-up to the original advisory titled “ICSA-21-336-06 Hitachi Energy APM Edge” that was published December 02, 2021, on the ICS webpage on cisa.gov/ics.
## 3. RISK EVALUATION
Successful exploitation of thi
CISA ICS
Hitachi Energy RTU500 series
cisa_ics·2021-12-02·CVSS 3.7
[LOW] Hitachi Energy RTU500 series
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Hitachi Energy RTU500 series
Last RevisedDecember 02, 2021
Alert CodeICSA-21-336-08
## 1. EXECUTIVE SUMMARY
- CVSS v3 8.6
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Hitachi Energy
- Equipment: RTU500 series
- Vulnerabilities: Observable Discrepancy, Buffer Over-read, Out-of-bounds Read
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to eavesdrop on traffic, retrieve information from memory, or cause a denial-of-service condition.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
The following versions
Ubuntu
libxml2 vulnerabilities
vendor_ubuntu·2021-06-17·CVSS 9.1
CVE-2021-3516 [CRITICAL] libxml2 vulnerabilities
Title: libxml2 vulnerabilities
Summary: Several security issues were fixed in libxml2.
Yunho Kim discovered that libxml2 incorrectly handled certain error
conditions. A remote attacker could exploit this with a crafted XML file to
cause a denial of service, or possibly cause libxml2 to expose sensitive
information. This issue only affected Ubuntu 14.04 ESM, and Ubuntu 16.04
ESM. (CVE-2017-8872)
Zhipeng Xie discovered that libxml2 incorrectly handled certain XML
schemas. A remote attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM,
and Ubuntu 18.04 LTS. (CVE-2019-20388)
It was discovered that libxml2 incorrectly handled invalid UTF-8 input. A
remote attacker could possibly exploit this with a crafted XML file t
Microsoft
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
vendor_msrc·2020-09-08·CVSS 6.5
CVE-2020-24977 [MEDIUM] CWE-125 GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner
Red Hat
libxml2: Buffer overflow vulnerability in xmlEncodeEntitiesInternal() in entities.c
vendor_redhat·2020-09-04·CVSS 6.5
CVE-2020-24977 [MEDIUM] CWE-20 libxml2: Buffer overflow vulnerability in xmlEncodeEntitiesInternal() in entities.c
libxml2: Buffer overflow vulnerability in xmlEncodeEntitiesInternal() in entities.c
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Package: libxml2 (Red Hat Enterprise Linux 5) - Out of support scope
Package: libxml2 (Red Hat Enterprise Linux 6) - Out of support scope
Package: libxml2 (Red Hat Enterprise Linux 7) - Will not fix
Package: libxml2 (Red Hat JBoss Core Services) - Not affected
Debian
CVE-2020-24977: libxml2 - GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xml...
vendor_debian·2020·CVSS 6.5
CVE-2020-24977 [MEDIUM] CVE-2020-24977: libxml2 - GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xml...
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
Scope: local
bookworm: resolved (fixed in 2.9.10+dfsg-6.2)
bullseye: resolved (fixed in 2.9.10+dfsg-6.2)
forky: resolved (fixed in 2.9.10+dfsg-6.2)
sid: resolved (fixed in 2.9.10+dfsg-6.2)
trixie: resolved (fixed in 2.9.10+dfsg-6.2)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-24977 mingw-libxml2: libxml2: Buffer Overflow vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c [fedora-all]
bugzilla·2020-09-10·CVSS 6.5
CVE-2020-24977 [MEDIUM] CVE-2020-24977 mingw-libxml2: libxml2: Buffer Overflow vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c [fedora-all]
CVE-2020-24977 mingw-libxml2: libxml2: Buffer Overflow vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message
Bugzilla
CVE-2020-24977 libxml2: Buffer overflow vulnerability in xmlEncodeEntitiesInternal() in entities.c
bugzilla·2020-09-10·CVSS 6.5
CVE-2020-24977 [MEDIUM] CVE-2020-24977 libxml2: Buffer overflow vulnerability in xmlEncodeEntitiesInternal() in entities.c
CVE-2020-24977 libxml2: Buffer overflow vulnerability in xmlEncodeEntitiesInternal() in entities.c
GNOME project libxml2 v2.9.10 and earlier have a global Buffer Overflow vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 8e7c20a1 (20910-GITv2.9.10-103-g8e7c20a1).
References:
https://gitlab.gnome.org/GNOME/libxml2/-/issues/178
https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
Discussion:
Created mingw-libxml2 tracking bugs for this issue:
Affects: fedora-all [bug 1877789]
---
I've done the Fedora and Fedora mingw-libxml2 packages. No bug was created
to track Fedora.
libxml2
f33 https://bodhi.fedoraproject.org/updates/FEDORA-2020-dd2fc19b78
f32 https://bodhi.fedoraproject.org/updates/FEDORA-2020-35087800be
f31 https
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00036.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00061.htmlhttps://gitlab.gnome.org/GNOME/libxml2/-/commit/50f06b3efb638efb0abd95dc62dca05ae67882c2https://gitlab.gnome.org/GNOME/libxml2/-/issues/178https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3Ehttps://lists.debian.org/debian-lts-announce/2020/09/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2NQ5GTDYOVH26PBCPYXXMGW5ZZXWMGZC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5KTUAGDLEHTH6HU66HBFAFTSQ3OKRAN3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/674LQPJO2P2XTBTREFR5LOZMBTZ4PZAY/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KQXOHIE3MNY3VQXEN7LDQUJNIHOVHAW/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ENEHQIBMSI6TZVS35Y6I4FCTYUQDLJVP/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H3IQ7OQXBKWD3YP7HO6KCNOMLE5ZO2IR/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3ICASXZI2UQYFJAOQWHSTNWGED3VXOE/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCHXIWR5DHYO3RSO7RAHEC6VJKXD2EH2/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7MEWYKIKMV2SKMGH4IDWVU3ZGJXBCPQ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RIQAMBA2IJUTQG5VOP5LZVIZRNCKXHEQ/https://security.gentoo.org/glsa/202107-05https://security.netapp.com/advisory/ntap-20200924-0001/https://security.netapp.com/advisory/ntap-20200924-0001/https://www.oracle.com/security-alerts/cpuapr2022.htmlhttps://www.oracle.com/security-alerts/cpujul2022.htmlhttps://www.oracle.com/security-alerts/cpuoct2021.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00036.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00061.htmlhttps://gitlab.gnome.org/GNOME/libxml2/-/commit/50f06b3efb638efb0abd95dc62dca05ae67882c2https://gitlab.gnome.org/GNOME/libxml2/-/issues/178https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3Ehttps://lists.debian.org/debian-lts-announce/2020/09/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2NQ5GTDYOVH26PBCPYXXMGW5ZZXWMGZC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5KTUAGDLEHTH6HU66HBFAFTSQ3OKRAN3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/674LQPJO2P2XTBTREFR5LOZMBTZ4PZAY/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KQXOHIE3MNY3VQXEN7LDQUJNIHOVHAW/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ENEHQIBMSI6TZVS35Y6I4FCTYUQDLJVP/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H3IQ7OQXBKWD3YP7HO6KCNOMLE5ZO2IR/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3ICASXZI2UQYFJAOQWHSTNWGED3VXOE/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCHXIWR5DHYO3RSO7RAHEC6VJKXD2EH2/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7MEWYKIKMV2SKMGH4IDWVU3ZGJXBCPQ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RIQAMBA2IJUTQG5VOP5LZVIZRNCKXHEQ/https://security.gentoo.org/glsa/202107-05https://security.netapp.com/advisory/ntap-20200924-0001/https://security.netapp.com/advisory/ntap-20200924-0001/https://www.oracle.com/security-alerts/cpuapr2022.htmlhttps://www.oracle.com/security-alerts/cpujul2022.htmlhttps://www.oracle.com/security-alerts/cpuoct2021.html
2020-09-04
Published