Access of Uninitialized Pointer Affecting libslirp-devel package, versions <4.3.1-150300.3.3.1


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-SLES153-LIBSLIRPDEVEL-2774438
  • published23 Apr 2022
  • disclosed24 Apr 2022

Introduced: 23 Apr 2022

CVE-2021-3594  (opens in a new tab)
CWE-824  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 libslirp-devel to version 4.3.1-150300.3.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libslirp-devel package and not the libslirp-devel package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

CVSS Base Scores

version 3.1