Integer Overflow or Wraparound Affecting shim-ia32 package, versions <0:15.8-4.el8_9


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (10th percentile)

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  • Snyk IDSNYK-CENTOS8-SHIMIA32-6189317
  • published25 Jan 2024
  • disclosed3 Oct 2023

Introduced: 3 Oct 2023

CVE-2023-40548  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Centos:8 shim-ia32 to version 0:15.8-4.el8_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim-ia32 package and not the shim-ia32 package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.

CVSS Base Scores

version 3.1