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Out-of-bounds Write Affecting kernel-debug-modules package, versions <0:4.18.0-477.27.1.el8_8

Severity

 Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.06% (30th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELDEBUGMODULES-5908317
  • published 23 Jun 2023
  • disclosed 29 May 2023
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Introduced: 29 May 2023

CVE-2023-35788 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade RHEL:8 kernel-debug-modules to version 0:4.18.0-477.27.1.el8_8 or higher.
This issue was patched in RHSA-2023:5244.

NVD Description

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

An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets. This may result in denial of service or privilege escalation.

CVSS Scores

version 3.1
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NVD

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

7.8 high
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SUSE

7.4 high