Security update for ovmf

Announcement ID:	SUSE-SU-2026:21440-1
Release Date:	2026-04-24T13:08:28Z
Rating:	important
References:	bsc#1259362 bsc#1261469 bsc#1261476 bsc#1261477 bsc#1261478 bsc#1262631 bsc#1262632 bsc#1262635 bsc#1262636 bsc#1262638
Cross-References:	CVE-2026-1965 CVE-2026-25833 CVE-2026-25834 CVE-2026-25835 CVE-2026-34874 CVE-2026-4873 CVE-2026-5545 CVE-2026-6253 CVE-2026-6276 CVE-2026-6429
CVSS scores:	CVE-2026-1965 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N CVE-2026-1965 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N CVE-2026-1965 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVE-2026-25833 ( 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 CVE-2026-25833 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-25833 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-25834 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N CVE-2026-25834 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVE-2026-25834 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVE-2026-25835 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2026-25835 ( SUSE ): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVE-2026-25835 ( NVD ): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A: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 CVE-2026-34874 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-34874 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-4873 ( 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-2026-4873 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVE-2026-5545 ( SUSE ): 8.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2026-5545 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N CVE-2026-6253 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-6253 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2026-6276 ( 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-2026-6276 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVE-2026-6429 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-6429 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:	SUSE Linux Micro 6.0 SUSE Linux Micro 6.1

An update that solves 10 vulnerabilities can now be installed.

Security update for ovmf

Description:

This update for ovmf fixes the following issues:

• CVE-2026-25833: mbedtls: buffer overflow in the x509_inet_pton_ipv6() function (bsc#1261476).
• CVE-2026-25834: mbedtls: client accepts signature algorithm chosen by server even if not advertised in client hello (bsc#1261477).
• CVE-2026-25835: mbedtls: no pseudo-random number generator reseed when cloning an application (bsc#1261478).
• CVE-2026-34874: mbedtls: NULL pointer dereference in distinguished name parsing (bsc#1261469).

Security update for curl

Description:

This update for curl fixes the following issues:

Security issues fixed:

• CVE-2026-4873: connection reuse ignores TLS requirement (bsc#1262631).
• CVE-2026-5545: wrong reuse of HTTP Negotiate connection (bsc#1262632).
• CVE-2026-6253: proxy credentials leak over redirect-to proxy (bsc#1262635).
• CVE-2026-6276: stale custom cookie host causes cookie leak (bsc#1262636).
• CVE-2026-6429: netrc credential leak with reused proxy connection (bsc#1262638).

Other updates and bugfixes:

• sws: prevent "connection monitor" to say disconnect twice (bsc#1259362).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• SUSE Linux Micro 6.1
  zypper in -t patch SUSE-SLE-Micro-6.1-508=1
• SUSE Linux Micro 6.0
  zypper in -t patch SUSE-SLE-Micro-6.0-695=1

Package List:

• SUSE Linux Micro 6.1 (noarch)
  • qemu-ovmf-x86_64-202402-slfo.1.1_3.1
  • qemu-uefi-aarch64-202402-slfo.1.1_3.1
• SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
  • curl-debuginfo-8.14.1-6.1
  • curl-debugsource-8.14.1-6.1
  • libcurl4-debuginfo-8.14.1-6.1
  • libcurl4-8.14.1-6.1
  • curl-8.14.1-6.1

References:

• https://www.suse.com/security/cve/CVE-2026-1965.html
• https://www.suse.com/security/cve/CVE-2026-25833.html
• https://www.suse.com/security/cve/CVE-2026-25834.html
• https://www.suse.com/security/cve/CVE-2026-25835.html
• https://www.suse.com/security/cve/CVE-2026-34874.html
• https://www.suse.com/security/cve/CVE-2026-4873.html
• https://www.suse.com/security/cve/CVE-2026-5545.html
• https://www.suse.com/security/cve/CVE-2026-6253.html
• https://www.suse.com/security/cve/CVE-2026-6276.html
• https://www.suse.com/security/cve/CVE-2026-6429.html
• https://bugzilla.suse.com/show_bug.cgi?id=1259362
• https://bugzilla.suse.com/show_bug.cgi?id=1261469
• https://bugzilla.suse.com/show_bug.cgi?id=1261476
• https://bugzilla.suse.com/show_bug.cgi?id=1261477
• https://bugzilla.suse.com/show_bug.cgi?id=1261478
• https://bugzilla.suse.com/show_bug.cgi?id=1262631
• https://bugzilla.suse.com/show_bug.cgi?id=1262632
• https://bugzilla.suse.com/show_bug.cgi?id=1262635
• https://bugzilla.suse.com/show_bug.cgi?id=1262636
• https://bugzilla.suse.com/show_bug.cgi?id=1262638