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Out-of-bounds Read Affecting tigervnc package, versions <0:1.12.0-15.el8_8

Severity

 Recommended
medium

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    5.17% (94th percentile)

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  • Snyk ID SNYK-ALMALINUX8-TIGERVNC-5615407
  • published 28 May 2023
  • disclosed 9 May 2023
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Introduced: 9 May 2023

CVE-2022-46344 Open this link in a new tab
CWE-125 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:8 tigervnc to version 0:1.12.0-15.el8_8 or higher.
This issue was patched in ALSA-2023:2830.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc package and not the tigervnc package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty request has a length-validation issues, resulting in out-of-bounds memory reads and potential information disclosure. 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.

References

CVSS Scores

version 3.1
Expand this section

NVD

8.8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

5.5 medium
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Red Hat

8.8 high