CVE-2020-14404
published 2020-06-17CVE-2020-14404: An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
PriorityP429medium5.4CVSS 3.1
AVNACLPRLUINSUCLINAL
EPSS
1.59%
72.9th percentile
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
Affected
25 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| david_king | vino | >= 0 < 3.8.1-0ubuntu9.3 | 3.8.1-0ubuntu9.3 |
| david_king | vino | >= 0 < 3.22.0-3ubuntu1.1 | 3.22.0-3ubuntu1.1 |
| david_king | vino | >= 0 < 3.22.0-5ubuntu2.1 | 3.22.0-5ubuntu2.1 |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | libvncserver | < libvncserver 0.9.13+dfsg-1 (bookworm) | libvncserver 0.9.13+dfsg-1 (bookworm) |
| libvnc_project | libvncserver | < 0.9.12 | 0.9.12 |
| libvncserver_project | libvncserver | >= 0 < 0.9.13+dfsg-1 | 0.9.13+dfsg-1 |
| libvncserver_project | libvncserver | >= 0 < 0.9.13+dfsg-1 | 0.9.13+dfsg-1 |
| libvncserver_project | libvncserver | >= 0 < 0.9.13+dfsg-1 | 0.9.13+dfsg-1 |
| libvncserver_project | libvncserver | >= 0 < 0.9.13+dfsg-1 | 0.9.13+dfsg-1 |
| libvncserver_project | libvncserver | >= 0 < 0.9.10+dfsg-3ubuntu0.16.04.5 | 0.9.10+dfsg-3ubuntu0.16.04.5 |
| libvncserver_project | libvncserver | >= 0 < 0.9.11+dfsg-1ubuntu1.3 | 0.9.11+dfsg-1ubuntu1.3 |
| libvncserver_project | libvncserver | >= 0 < 0.9.12+dfsg-9ubuntu0.2 | 0.9.12+dfsg-9ubuntu0.2 |
| siemens | simatic_itc1500_firmware | >= 3.0.0.0 < 3.2.1.0 | 3.2.1.0 |
| siemens | simatic_itc1500_pro_firmware | >= 3.0.0.0 < 3.2.1.0 | 3.2.1.0 |
| siemens | simatic_itc1900_firmware | >= 3.0.0.0 < 3.2.1.0 | 3.2.1.0 |
| siemens | simatic_itc1900_pro_firmware | >= 3.0.0.0 < 3.2.1.0 | 3.2.1.0 |
| siemens | simatic_itc2200_firmware | >= 3.0.0.0 < 3.2.1.0 | 3.2.1.0 |
| siemens | simatic_itc2200_pro_firmware | >= 3.0.0.0 < 3.2.1.0 | 3.2.1.0 |
CVSS provenance
nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
nvdv2.05.5MEDIUMAV:N/AC:L/Au:S/C:P/I:N/A:P
osv7.5HIGH
vendor_ubuntu7.5HIGH
vendor_debian5.4MEDIUM
vendor_redhat5.4MEDIUM
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GHSA
GHSA-xrqg-3g47-qq3r: An issue was discovered in LibVNCServer before 0
ghsa_unreviewed·2022-05-24
CVE-2020-14404 [HIGH] CWE-119 GHSA-xrqg-3g47-qq3r: An issue was discovered in LibVNCServer before 0
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
OSV
vino vulnerabilities
osv·2020-10-07·CVSS 5.0
CVE-2014-6053 [MEDIUM] vino vulnerabilities
vino vulnerabilities
Nicolas Ruff discovered that Vino incorrectly handled large ClientCutText
messages. A remote attacker could use this issue to cause the server to
crash, resulting in a denial of service. (CVE-2014-6053)
It was discovered that Vino incorrectly handled certain packet lengths. A
remote attacker could possibly use this issue to obtain sensitive
information, cause a denial of service, or execute arbitrary code.
(CVE-2018-7225)
Pavel Cheremushkin discovered that an information disclosure vulnerability
existed in Vino when sending a ServerCutText message. An attacker could
possibly use this issue to expose sensitive information. (CVE-2019-15681)
It was discovered that Vino incorrectly handled region clipping. A remote
attacker could possibly use this issue to cause Vino t
OSV
libvncserver vulnerabilities
osv·2020-07-23·CVSS 7.5
CVE-2019-20839 [HIGH] libvncserver vulnerabilities
libvncserver vulnerabilities
Ramin Farajpour Cami discovered that LibVNCServer incorrectly handled
certain malformed unix socket names. A remote attacker could exploit this
with a crafted socket name, leading to a denial of service, or possibly
execute arbitrary code. (CVE-2019-20839)
It was discovered that LibVNCServer did not properly access byte-aligned
data. A remote attacker could possibly use this issue to cause
LibVNCServer to crash, resulting in a denial of service. This issue only
affected Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. (CVE-2019-20840)
Christian Beier discovered that LibVNCServer incorrectly handled anonymous
TLS connections. A remote attacker could possibly use this issue to cause
LibVNCServer to crash, resulting in a denial of service. This issue only
affected Ubuntu
OSV
CVE-2020-14404: An issue was discovered in LibVNCServer before 0
osv·2020-06-17·CVSS 5.4
CVE-2020-14404 [MEDIUM] CVE-2020-14404: An issue was discovered in LibVNCServer before 0
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
CISA ICS
Siemens SIMATIC ITC
cisa_ics·2021-12-16·CVSS 9.8
[CRITICAL] Siemens SIMATIC ITC
## 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
##
Siemens SIMATIC ITC
Last RevisedDecember 16, 2021
Alert CodeICSA-21-350-12
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SIMATIC ITC Products
- Vulnerabilities: Using Components with Known Vulnerabilities
## 2. RISK EVALUATION
Successful exploitation of these LibVNC vulnerabilities could allow remote code execution, information disclosure, and denial-of-service attacks.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
Siemens reports these vulnerabilities affect the following SIMATIC Industri
Ubuntu
Vino vulnerabilities
vendor_ubuntu·2020-10-07·CVSS 5.0
CVE-2014-6053 [MEDIUM] Vino vulnerabilities
Title: Vino vulnerabilities
Summary: Several security issues were fixed in Vino.
Nicolas Ruff discovered that Vino incorrectly handled large ClientCutText
messages. A remote attacker could use this issue to cause the server to
crash, resulting in a denial of service. (CVE-2014-6053)
It was discovered that Vino incorrectly handled certain packet lengths. A
remote attacker could possibly use this issue to obtain sensitive
information, cause a denial of service, or execute arbitrary code.
(CVE-2018-7225)
Pavel Cheremushkin discovered that an information disclosure vulnerability
existed in Vino when sending a ServerCutText message. An attacker could
possibly use this issue to expose sensitive information. (CVE-2019-15681)
It was discovered that Vino incorrectly handled region clipping. A
Ubuntu
LibVNCServer vulnerabilities
vendor_ubuntu·2020-07-23·CVSS 7.5
CVE-2019-20839 [HIGH] LibVNCServer vulnerabilities
Title: LibVNCServer vulnerabilities
Summary: Several security issues were fixed in LibVNCServer.
Ramin Farajpour Cami discovered that LibVNCServer incorrectly handled
certain malformed unix socket names. A remote attacker could exploit this
with a crafted socket name, leading to a denial of service, or possibly
execute arbitrary code. (CVE-2019-20839)
It was discovered that LibVNCServer did not properly access byte-aligned
data. A remote attacker could possibly use this issue to cause
LibVNCServer to crash, resulting in a denial of service. This issue only
affected Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. (CVE-2019-20840)
Christian Beier discovered that LibVNCServer incorrectly handled anonymous
TLS connections. A remote attacker could possibly use this issue to cause
LibVNCServer to cra
Red Hat
libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings
vendor_redhat·2020-06-17·CVSS 5.4
CVE-2020-14404 [MEDIUM] CWE-119 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings
libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
Package: libvncserver (Red Hat Enterprise Linux 6) - Out of support scope
Package: vino (Red Hat Enterprise Linux 6) - Out of support scope
Package: libvncserver (Red Hat Enterprise Linux 7) - Fix deferred
Package: vino (Red Hat Enterprise Linux 7) - Fix deferred
Package: libvncserver (Red Hat Enterprise Linux 8) - Fix deferred
Package: vino (Red Hat Enterprise Linux 8) - Fix deferred
Debian
CVE-2020-14404: libvncserver - An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows...
vendor_debian·2020·CVSS 5.4
CVE-2020-14404 [MEDIUM] CVE-2020-14404: libvncserver - An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows...
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
Scope: local
bookworm: resolved (fixed in 0.9.13+dfsg-1)
bullseye: resolved (fixed in 0.9.13+dfsg-1)
forky: resolved (fixed in 0.9.13+dfsg-1)
sid: resolved (fixed in 0.9.13+dfsg-1)
trixie: resolved (fixed in 0.9.13+dfsg-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings [fedora-all]
bugzilla·2020-07-24·CVSS 5.4
CVE-2020-14404 [MEDIUM] CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings [fedora-all]
CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings [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.
NOTE: this issue affects mu
Bugzilla
CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings [epel-7]
bugzilla·2020-07-24·CVSS 5.4
CVE-2020-14404 [MEDIUM] CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings [epel-7]
CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-7.
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.
Discussion:
Use the following temp
Bugzilla
CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings
bugzilla·2020-07-24·CVSS 5.4
CVE-2020-14404 [MEDIUM] CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings
CVE-2020-14404 libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
Upstream commit:
CVE-2020-14404
Discussion:
Created libvncserver tracking bugs for this issue:
Affects: epel-7 [bug 1860338]
Affects: fedora-all [bug 1860339]
---
in libvncserver/rre.c's subrectEncode##bpp() rectangle encoder, there's a potential out-of-bounds read due to && operator order. The patch reverses the order. This flaw could potentially cause undefined behavior or a crash if the width (w) is incorrect.
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfhttps://github.com/LibVNC/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfffhttps://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13https://lists.debian.org/debian-lts-announce/2020/06/msg00035.htmlhttps://lists.debian.org/debian-lts-announce/2020/08/msg00045.htmlhttps://usn.ubuntu.com/4434-1/https://usn.ubuntu.com/4573-1/https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfhttps://github.com/LibVNC/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfffhttps://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13https://lists.debian.org/debian-lts-announce/2020/06/msg00035.htmlhttps://lists.debian.org/debian-lts-announce/2020/08/msg00045.htmlhttps://usn.ubuntu.com/4434-1/https://usn.ubuntu.com/4573-1/
2020-06-17
Published