NULL Pointer Dereference Affecting libssh-devel package, versions <0.9.8-150200.13.3.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
3.14% (87th percentile)

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  • Snyk IDSNYK-SLES152-LIBSSHDEVEL-6254365
  • published20 Feb 2024
  • disclosed19 Feb 2024

Introduced: 19 Feb 2024

CVE-2020-1730  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 libssh-devel to version 0.9.8-150200.13.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh-devel package and not the libssh-devel package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.

CVSS Base Scores

version 3.1