Covert Timing Channel Affecting libgcrypt20-32bit package, versions <1.9.4-150500.12.3.3


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
1.14% (67th percentile)

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  • Snyk IDSNYK-SLES155-LIBGCRYPT2032BIT-11799903
  • published14 Aug 2025
  • disclosed13 Aug 2025

Introduced: 13 Aug 2025

CVE-2024-2236  (opens in a new tab)
CWE-385  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 libgcrypt20-32bit to version 1.9.4-150500.12.3.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt20-32bit package and not the libgcrypt20-32bit package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.

CVSS Base Scores

version 3.1