SUSE alert openSUSE-SU-2026:21005-1 (openssl-3)

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openSUSE-SU-2026:21005-1: important: Security update for openssl-3
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Tue, 30 Jun 2026 09:47:53 +0200
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<20260630074753.0743DFF26@maintenance.suse.de>
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Article
openSUSE security update: security update for openssl-3
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21005-1
Rating: important
References:

  * bsc#1259652
  * bsc#1266340
  * bsc#1266341
  * bsc#1266342
  * bsc#1266344
  * bsc#1266345
  * bsc#1266347
  * bsc#1266349
  * bsc#1266350
  * bsc#1266351
  * bsc#1266352
  * bsc#1266353
  * bsc#1266355
  * bsc#1266356
  * bsc#1266357



Cross-References:

  * CVE-2026-2673
  * CVE-2026-34180
  * CVE-2026-34182
  * CVE-2026-34183
  * CVE-2026-42764
  * CVE-2026-42766
  * CVE-2026-42767
  * CVE-2026-42768
  * CVE-2026-42769
  * CVE-2026-42770
  * CVE-2026-45445
  * CVE-2026-45446
  * CVE-2026-45447
  * CVE-2026-7383
  * CVE-2026-9076



CVSS scores:

  * CVE-2026-2673 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-2673 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-34180 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-34180 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-34182 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-34182 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-34183 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34183 ( SUSE ): 6 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-42764 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-42764 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-42766 ( SUSE ): 5.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-42766 ( SUSE ): 6.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-42767 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42767 ( SUSE ): 6 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-42768 ( SUSE ): 4.2 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
  * CVE-2026-42768 ( SUSE ): 5.7 CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-42769 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-42769 ( SUSE ): 7.4 CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-42770 ( SUSE ): 5 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:N
  * CVE-2026-42770 ( SUSE ): 5.9 CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-45445 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-45445 ( SUSE ): 6 CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-45446 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-45446 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-45447 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-45447 ( SUSE ): 7.7 CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-7383 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-7383 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-9076 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-9076 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 15 vulnerabilities and has 15 bug fixes can now be installed.

Description:

This update for openssl-3 fixes the following issues

- CVE-2026-2673: TLS 1.3 servers may choose unexpected key agreement group (bsc#1259652).
- CVE-2026-7383: Possible Heap Buffer Overflow in ASN.1 Multibyte String Conversion (bsc#1266340).
- CVE-2026-9076: Out-of-Bounds Read in CMS Password-Based Decryption (bsc#1266341).
- CVE-2026-34180: Heap Buffer Over-read in ASN.1 Content Parsing (bsc#1266342).
- CVE-2026-34182: CMS AuthEnvelopedData Processing May Accept Forged Messages (bsc#1266344).
- CVE-2026-34183: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (bsc#1266345).
- CVE-2026-42764: NULL pointer dereference in QUIC server initial packet handling (bsc#1266347).
- CVE-2026-42766: Possible NULL Dereference in Password-Based CMS Decryption (bsc#1266349).
- CVE-2026-42767: NULL Pointer Dereference in CRMF EncryptedValue Decryption (bsc#1266350).
- CVE-2026-42768: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()
(bsc#1266351).
- CVE-2026-42769: Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate
(bsc#1266352).
- CVE-2026-42770: FFC-DH Peer Validation Uses Attacker-Supplied q (bsc#1266353).
- CVE-2026-45445: AES-OCB IV Ignored on EVP_Cipher() Path (bsc#1266355).
- CVE-2026-45446: Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes
(bsc#1266356).
- CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7_verify() (bsc#1266357).


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 Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-1017=1

Package List:

- openSUSE Leap 16.0:

  libopenssl-3-devel-3.5.0-160000.8.1
  libopenssl-3-fips-provider-3.5.0-160000.8.1
  libopenssl-3-fips-provider-x86-64-v3-3.5.0-160000.8.1
  libopenssl3-3.5.0-160000.8.1
  libopenssl3-x86-64-v3-3.5.0-160000.8.1
  openssl-3-3.5.0-160000.8.1
  openssl-3-doc-3.5.0-160000.8.1

References:

  * https://www.suse.com/security/cve/CVE-2026-2673.html
  * https://www.suse.com/security/cve/CVE-2026-34180.html
  * https://www.suse.com/security/cve/CVE-2026-34182.html
  * https://www.suse.com/security/cve/CVE-2026-34183.html
  * https://www.suse.com/security/cve/CVE-2026-42764.html
  * https://www.suse.com/security/cve/CVE-2026-42766.html
  * https://www.suse.com/security/cve/CVE-2026-42767.html
  * https://www.suse.com/security/cve/CVE-2026-42768.html
  * https://www.suse.com/security/cve/CVE-2026-42769.html
  * https://www.suse.com/security/cve/CVE-2026-42770.html
  * https://www.suse.com/security/cve/CVE-2026-45445.html
  * https://www.suse.com/security/cve/CVE-2026-45446.html
  * https://www.suse.com/security/cve/CVE-2026-45447.html
  * https://www.suse.com/security/cve/CVE-2026-7383.html
  * https://www.suse.com/security/cve/CVE-2026-9076.html