Use of a Broken or Risky Cryptographic Algorithm Affecting libtpms0 package, versions <0.10.0-160000.5.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.08% (1st percentile)

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  • Snyk IDSNYK-SLES1600-LIBTPMS0-16687287
  • published14 May 2026
  • disclosed6 May 2026

Introduced: 6 May 2026

CVE-2026-21444  (opens in a new tab)
CWE-327  (opens in a new tab)
CWE-330  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 libtpms0 to version 0.10.0-160000.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libtpms0 package and not the libtpms0 package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

libtpms, a library that provides software emulation of a Trusted Platform Module, has a flaw in versions 0.10.0 and 0.10.1. The commonly used integration of libtpms with OpenSSL 3.x contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality. Version 0.10.2 fixes the issue. No known workarounds are available.

CVSS Base Scores

version 3.1