openSUSE-SU-2026:0306-1: important: Security update for tor

   openSUSE Security Update: Security update for tor
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Announcement ID:    openSUSE-SU-2026:0306-1
Rating:             important
References:         #1275918 #1275919 #1275920 
Cross-References:   CVE-2026-77584 CVE-2026-77587 CVE-2026-77638
                   
Affected Products:
                    openSUSE Backports SLE-15-SP7
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   An update that fixes three vulnerabilities is now available.

Description:

   This update for tor fixes the following issues:

   - Update to 0.4.9.11
     * Major bugfixes
       + onion services: Prevent a race condition (boo#1275918,
         CVE-2026-77638)
       + client: no longer assert and exit if an onion service encodes an
         all-zero public key for one of its introduction points
       + directory authorities: Stop allowing 0 as a port in exit policy lines
       + security, conflux: Fix a use-after-free (and potential double free)
         (boo#1275919, CVE-2026-77587, TROVE-2026-026)
   - Update to 0.4.9.10
     * Major bugfixes
       + conflux, security: Reject a CONFLUX_LINK cell that arrives on a
         circuit which already has attached streams. (boo#1275920,
         CVE-2026-77584, TROVE-2026-025)
       + client: Resume warning about unsafe socks protocols when SafeSocks
         is not set. Also resume warning every time when TestSocks is set.
       + Make clients more consistently expire entry guards 48 to 60 days
         after they are first used.


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-2026-306=1



Package List:

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

      tor-0.4.9.11-bp157.2.15.1


References:

   https://www.suse.com/security/cve/CVE-2026-77584.html
   https://www.suse.com/security/cve/CVE-2026-77587.html
   https://www.suse.com/security/cve/CVE-2026-77638.html
   https://bugzilla.suse.com/1275918
   https://bugzilla.suse.com/1275919
   https://bugzilla.suse.com/1275920