SUSE alert openSUSE-SU-2026:0214-1 (mbedtls)

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maintenance@opensuse.org
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openSUSE-SU-2026:0214-1: important: Security update for mbedtls
Date:
             
 
Thu, 25 Jun 2026 15:05:02 +0200
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<20260625130502.38681FCE4@maintenance.suse.de>
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Article

   openSUSE Security Update: Security update for mbedtls
______________________________________________________________________________

Announcement ID:    openSUSE-SU-2026:0214-1
Rating:             important
References:         #1245808 #1245809 #1245810 #1245811 #1252454 
                    #1261527 
Cross-References:   CVE-2025-49600 CVE-2025-49601 CVE-2025-52496
                    CVE-2025-52497 CVE-2025-59438 CVE-2026-34874
                   
CVSS scores:
                    CVE-2025-59438 (SUSE): 5.7
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
                    CVE-2026-34874 (SUSE): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected Products:
                    openSUSE Backports SLE-15-SP7
______________________________________________________________________________

   An update that fixes 6 vulnerabilities is now available.

Description:

   This update for mbedtls fixes the following issues:

   - Update to the 3.6 LTS line (3.6.6) to fix several security issues; this
     bumps the SONAMEs (libmbedtls20 -> libmbedtls21, libmbedcrypto15 ->
     libmbedcrypto16, libmbedx509-6 -> libmbedx509-7):
     * CVE-2025-49600: possible LMS signature forgery due to unchecked return
       values in mbedtls_lms_verify (boo#1245808)
     * CVE-2025-49601: out-of-bounds read in mbedtls_lms_import_public_key on
       truncated input (boo#1245809)
     * CVE-2025-52496: race condition in AESNI detection allowing AES key
       extraction or GCM forgery (boo#1245810)
     * CVE-2025-52497: one-byte heap buffer underflow in PEM parsing
       (boo#1245811)
     * CVE-2025-59438: observable timing discrepancy (padding
       oracle) in CBC-PKCS7 (boo#1252454)
     * CVE-2026-34874: NULL pointer dereference in X.509 distinguished-name
       parsing (boo#1261527)
   - Ship the pkg-config files in the -devel subpackage


Patch Instructions:

   To install this openSUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - openSUSE Backports SLE-15-SP7:

      zypper in -t patch openSUSE-2026-214=1



Package List:

   - openSUSE Backports SLE-15-SP7 (aarch64 i586 ppc64le s390x x86_64):

      libeverest-3.6.6-bp157.2.3.1
      libmbedcrypto16-3.6.6-bp157.2.3.1
      libmbedtls21-3.6.6-bp157.2.3.1
      libmbedx509-7-3.6.6-bp157.2.3.1
      libp256m-3.6.6-bp157.2.3.1
      mbedtls-devel-3.6.6-bp157.2.3.1

   - openSUSE Backports SLE-15-SP7 (aarch64_ilp32):

      libeverest-64bit-3.6.6-bp157.2.3.1
      libmbedcrypto16-64bit-3.6.6-bp157.2.3.1
      libmbedtls21-64bit-3.6.6-bp157.2.3.1
      libmbedx509-7-64bit-3.6.6-bp157.2.3.1
      libp256m-64bit-3.6.6-bp157.2.3.1

   - openSUSE Backports SLE-15-SP7 (x86_64):

      libeverest-32bit-3.6.6-bp157.2.3.1
      libmbedcrypto16-32bit-3.6.6-bp157.2.3.1
      libmbedtls21-32bit-3.6.6-bp157.2.3.1
      libmbedx509-7-32bit-3.6.6-bp157.2.3.1
      libp256m-32bit-3.6.6-bp157.2.3.1


References:

   https://www.suse.com/security/cve/CVE-2025-49600.html
   https://www.suse.com/security/cve/CVE-2025-49601.html
   https://www.suse.com/security/cve/CVE-2025-52496.html
   https://www.suse.com/security/cve/CVE-2025-52497.html
   https://www.suse.com/security/cve/CVE-2025-59438.html
   https://www.suse.com/security/cve/CVE-2026-34874.html
   https://bugzilla.suse.com/1245808
   https://bugzilla.suse.com/1245809
   https://bugzilla.suse.com/1245810
   https://bugzilla.suse.com/1245811
   https://bugzilla.suse.com/1252454
   https://bugzilla.suse.com/1261527