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amazonAmazonALAS2-2023-2296
HistoryOct 12, 2023 - 3:09 p.m.

Medium: libX11

2023-10-1215:09:00
alas.aws.amazon.com
12
libx11
security advisory
out-of-bounds memory access
integer overflow
cve-2023-43785
cve-2023-43787
amazon linux 2

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

6.8

Confidence

High

EPSS

0

Percentile

5.1%

Issue Overview:

libX11: out-of-bounds memory access in _XkbReadKeySyms() (CVE-2023-43785)

libX11: integer overflow in XCreateImage() leading to a heap overflow. (CVE-2023-43787)

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.amzn2.0.4.aarch64  
    libX11-devel-1.6.7-3.amzn2.0.4.aarch64  
    libX11-debuginfo-1.6.7-3.amzn2.0.4.aarch64  
  
i686:  
    libX11-1.6.7-3.amzn2.0.4.i686  
    libX11-devel-1.6.7-3.amzn2.0.4.i686  
    libX11-debuginfo-1.6.7-3.amzn2.0.4.i686  
  
noarch:  
    libX11-common-1.6.7-3.amzn2.0.4.noarch  
  
src:  
    libX11-1.6.7-3.amzn2.0.4.src  
  
x86_64:  
    libX11-1.6.7-3.amzn2.0.4.x86_64  
    libX11-devel-1.6.7-3.amzn2.0.4.x86_64  
    libX11-debuginfo-1.6.7-3.amzn2.0.4.x86_64  

Additional References

Red Hat: CVE-2023-43785, CVE-2023-43787

Mitre: CVE-2023-43785, CVE-2023-43787

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

6.8

Confidence

High

EPSS

0

Percentile

5.1%