CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
41.5%
Issue Overview:
A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust that they were called with values provided by an Xserver adhering to the bounds specified in the X11 protocol, as all X servers provided by X.Org do. As the protocol only specifies a single byte for these values, an out-of-bounds value provided by a malicious server (or a malicious proxy-in-the-middle) can only overwrite other portions of the Display structure and not write outside the bounds of the Display structure itself, possibly causing the client to crash with this memory corruption. (CVE-2023-3138)
Affected Packages:
libX11
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update libX11 to update your system.
New Packages:
aarch64:
libX11-1.6.7-3.amzn2.0.3.aarch64
libX11-devel-1.6.7-3.amzn2.0.3.aarch64
libX11-debuginfo-1.6.7-3.amzn2.0.3.aarch64
i686:
libX11-1.6.7-3.amzn2.0.3.i686
libX11-devel-1.6.7-3.amzn2.0.3.i686
libX11-debuginfo-1.6.7-3.amzn2.0.3.i686
noarch:
libX11-common-1.6.7-3.amzn2.0.3.noarch
src:
libX11-1.6.7-3.amzn2.0.3.src
x86_64:
libX11-1.6.7-3.amzn2.0.3.x86_64
libX11-devel-1.6.7-3.amzn2.0.3.x86_64
libX11-debuginfo-1.6.7-3.amzn2.0.3.x86_64
Red Hat: CVE-2023-3138
Mitre: CVE-2023-3138
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | libx11 | < 1.6.7-3.amzn2.0.3 | libX11-1.6.7-3.amzn2.0.3.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libx11-devel | < 1.6.7-3.amzn2.0.3 | libX11-devel-1.6.7-3.amzn2.0.3.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libx11-debuginfo | < 1.6.7-3.amzn2.0.3 | libX11-debuginfo-1.6.7-3.amzn2.0.3.aarch64.rpm |
Amazon Linux | 2 | i686 | libx11 | < 1.6.7-3.amzn2.0.3 | libX11-1.6.7-3.amzn2.0.3.i686.rpm |
Amazon Linux | 2 | i686 | libx11-devel | < 1.6.7-3.amzn2.0.3 | libX11-devel-1.6.7-3.amzn2.0.3.i686.rpm |
Amazon Linux | 2 | i686 | libx11-debuginfo | < 1.6.7-3.amzn2.0.3 | libX11-debuginfo-1.6.7-3.amzn2.0.3.i686.rpm |
Amazon Linux | 2 | noarch | libx11-common | < 1.6.7-3.amzn2.0.3 | libX11-common-1.6.7-3.amzn2.0.3.noarch.rpm |
Amazon Linux | 2 | x86_64 | libx11 | < 1.6.7-3.amzn2.0.3 | libX11-1.6.7-3.amzn2.0.3.x86_64.rpm |
Amazon Linux | 2 | x86_64 | libx11-devel | < 1.6.7-3.amzn2.0.3 | libX11-devel-1.6.7-3.amzn2.0.3.x86_64.rpm |
Amazon Linux | 2 | x86_64 | libx11-debuginfo | < 1.6.7-3.amzn2.0.3 | libX11-debuginfo-1.6.7-3.amzn2.0.3.x86_64.rpm |
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
41.5%