CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
94.8%
Debian LTS Advisory DLA-2666-1 [email protected]
https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
May 24, 2021 https://wiki.debian.org/LTS
Package : libx11
Version : 2:1.6.4-3+deb9u4
CVE ID : CVE-2021-31535
Debian Bug : 988737
Roman Fiedler found that libX11, the X11 protocol client library, was
vulnerable to protocol command injection due to insufficient validation
of arguments to some functions.
For Debian 9 stretch, this problem has been fixed in version
2:1.6.4-3+deb9u4.
We recommend that you upgrade your libx11 packages.
For the detailed security status of libx11 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libx11
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 9 | armel | libx11-xcb-dev | < 2:1.6.4-3+deb9u4 | libx11-xcb-dev_2:1.6.4-3+deb9u4_armel.deb |
Debian | 9 | i386 | libx11-6-udeb | < 2:1.6.4-3+deb9u4 | libx11-6-udeb_2:1.6.4-3+deb9u4_i386.deb |
Debian | 9 | i386 | libx11-xcb-dev | < 2:1.6.4-3+deb9u4 | libx11-xcb-dev_2:1.6.4-3+deb9u4_i386.deb |
Debian | 9 | arm64 | libx11-dev | < 2:1.6.4-3+deb9u4 | libx11-dev_2:1.6.4-3+deb9u4_arm64.deb |
Debian | 9 | arm64 | libx11-6-udeb | < 2:1.6.4-3+deb9u4 | libx11-6-udeb_2:1.6.4-3+deb9u4_arm64.deb |
Debian | 9 | amd64 | libx11-6 | < 2:1.6.4-3+deb9u4 | libx11-6_2:1.6.4-3+deb9u4_amd64.deb |
Debian | 9 | i386 | libx11-6 | < 2:1.6.4-3+deb9u4 | libx11-6_2:1.6.4-3+deb9u4_i386.deb |
Debian | 9 | all | libx11 | < 2:1.6.4-3+deb9u4 | libx11_2:1.6.4-3+deb9u4_all.deb |
Debian | 9 | armel | libx11-dev | < 2:1.6.4-3+deb9u4 | libx11-dev_2:1.6.4-3+deb9u4_armel.deb |
Debian | 9 | armel | libx11-xcb1 | < 2:1.6.4-3+deb9u4 | libx11-xcb1_2:1.6.4-3+deb9u4_armel.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
94.8%