Use of Uninitialized Resource Affecting libssh2-devel package, versions <1.11.0-150200.9.8.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.44% (37th percentile)

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  • Snyk IDSNYK-SLES154-LIBSSH2DEVEL-18591912
  • published8 Aug 2026
  • disclosed7 Aug 2026

Introduced: 7 Aug 2026

NewCVE-2026-58051  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 libssh2-devel to version 1.11.0-150200.9.8.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh2-devel package and not the libssh2-devel package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

libssh2 through 1.11.1 grows its publickey list with SSH2_REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2_publickey_list_free operating on an uninitialized entry. A malicious SSH server offering the publickey subsystem can use a malformed response to make cleanup free an uninitialized, attacker-influenceable attrs pointer in a connecting libssh2 client.

CVSS Base Scores

version 3.1