Out-of-bounds Write Affecting libudev-devel package, versions <234-24.30.1


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
2.04% (79th percentile)

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  • Snyk IDSNYK-SLES151-LIBUDEVDEVEL-2753559
  • published14 Apr 2022
  • disclosed15 Jul 2019

Introduced: 15 Jul 2019

CVE-2019-6454  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 libudev-devel to version 234-24.30.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libudev-devel package and not the libudev-devel package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).

CVSS Base Scores

version 3.1