CVE-2021-3541
published 2021-07-09CVE-2021-3541: A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
PriorityP431medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
1.96%
78.3th percentile
A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | libxml2 | < libxml2 2.9.10+dfsg-6.7 (bookworm) | libxml2 2.9.10+dfsg-6.7 (bookworm) |
| nokogiri | nokogiri | >= 0 < 1.11.4 | 1.11.4 |
| oracle | zfs_storage_appliance_kit | — | — |
| xmlsoft | libxml2 | < 2.9.11 | 2.9.11 |
| xmlsoft | libxml2 | — | — |
| xmlsoft | libxml2 | >= 0 < 2.9.10+dfsg-6.7 | 2.9.10+dfsg-6.7 |
| xmlsoft | libxml2 | >= 0 < 2.9.10+dfsg-6.7 | 2.9.10+dfsg-6.7 |
| xmlsoft | libxml2 | >= 0 < 2.9.10+dfsg-6.7 | 2.9.10+dfsg-6.7 |
| xmlsoft | libxml2 | >= 0 < 2.9.10+dfsg-6.7 | 2.9.10+dfsg-6.7 |
| xmlsoft | libxml2 | >= 0 < 2.9.4+dfsg1-6.1ubuntu1.4 | 2.9.4+dfsg1-6.1ubuntu1.4 |
| xmlsoft | libxml2 | >= 0 < 2.9.10+dfsg-5ubuntu0.20.04.1 | 2.9.10+dfsg-5ubuntu0.20.04.1 |
| xmlsoft | libxml2 | >= 0 < 2.9.1+dfsg1-3ubuntu4.13+esm2 | 2.9.1+dfsg1-3ubuntu4.13+esm2 |
| xmlsoft | libxml2 | >= 0 < 2.9.3+dfsg1-1ubuntu0.7+esm1 | 2.9.3+dfsg1-1ubuntu0.7+esm1 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
ghsa7.5HIGH
osv9.1CRITICAL
vendor_ubuntu9.1CRITICAL
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
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GHSA
GHSA-wcgr-63g6-pj93: A flaw was found in libxml2
ghsa_unreviewed·2022-05-24
CVE-2021-3541 [MEDIUM] CWE-776 GHSA-wcgr-63g6-pj93: A flaw was found in libxml2
A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
OSV
CVE-2021-3541: A flaw was found in libxml2
osv·2021-07-09·CVSS 6.5
CVE-2021-3541 [MEDIUM] CVE-2021-3541: A flaw was found in libxml2
A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
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
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
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
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
Red Hat
libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms
vendor_redhat·2021-05-13·CVSS 6.5
CVE-2021-3541 [MEDIUM] CWE-400 libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms
libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms
A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
Package: compat-expat1 (Red Hat Enterprise Linux 6) - 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 Enterprise Linux 9) - Not affected
Debian
CVE-2021-3541: libxml2 - A flaw was found in libxml2. Exponential entity expansion attack its possible by...
vendor_debian·2021·CVSS 6.5
CVE-2021-3541 [MEDIUM] CVE-2021-3541: libxml2 - A flaw was found in libxml2. Exponential entity expansion attack its possible by...
A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
Scope: local
bookworm: resolved (fixed in 2.9.10+dfsg-6.7)
bullseye: resolved (fixed in 2.9.10+dfsg-6.7)
forky: resolved (fixed in 2.9.10+dfsg-6.7)
sid: resolved (fixed in 2.9.10+dfsg-6.7)
trixie: resolved (fixed in 2.9.10+dfsg-6.7)
No detection rules found.
No public exploits indexed.
https://bugzilla.redhat.com/show_bug.cgi?id=1950515https://security.netapp.com/advisory/ntap-20210805-0007/https://www.oracle.com/security-alerts/cpujan2022.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1950515https://security.netapp.com/advisory/ntap-20210805-0007/https://www.oracle.com/security-alerts/cpujan2022.html
2021-07-09
Published