Stack-based Buffer Overflow Affecting kernel-zfcpdump-devel package, versions <0:4.18.0-553.5.1.el8_10


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (15th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELZFCPDUMPDEVEL-6417165
  • published 14 Mar 2024
  • disclosed 6 Mar 2024

How to fix?

Upgrade RHEL:8 kernel-zfcpdump-devel to version 0:4.18.0-553.5.1.el8_10 or higher.
This issue was patched in RHSA-2024:3618.

NVD Description

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

In the Linux kernel, the following vulnerability has been resolved:

powerpc/lib: Validate size for vector operations

Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyse_instr().

Add a check to validate the assumption on the maximum size of the operations, so as to prevent any unintended kernel stack corruption.

CVSS Scores

version 3.1
Expand this section

Red Hat

7.1 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)
    None
  • Availability (A)
    High
Expand this section

SUSE

5.5 medium