Out-of-bounds Write Affecting xorg-x11-server package, versions <1.19.6-150000.8.47.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
35.43% (98th percentile)

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  • Snyk IDSNYK-SLES150-XORGX11SERVER-3173659
  • published16 Dec 2022
  • disclosed14 Dec 2022

Introduced: 14 Dec 2022

CVE-2022-46340  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 xorg-x11-server to version 1.19.6-150000.8.47.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server package and not the xorg-x11-server package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.

References

CVSS Scores

version 3.1