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SUSE Linux Micro pcr-oracle Moderate Integer Underflow Fix 2026-22459-1

suse
Calendar Grey July 3, 2026
Dist Suse Esm H88
SUSE's security update for pcr-oracle addresses an integer underflow issue, enhancing system reliability and safety.
# Security update for pcr-oracle Announcement ID: SUSE-SU-2026:22459-1 Release Date: 2026-06-30T23:03:29Z Rating: moderate References:

Summary

## This update for pcr-oracle fixes the following issues Update to 0.6.3: Security issue: * integer underflow vulnerability in `parse_sbatlevel_section()` (bsc#1265042). Non security issue: * Lockout Authorization error for libvirt-emulated TPM (bsc#1265871). Changes for pcr-oracle: * Relax TPM self-test attribute checks (bsc#1265871) * Update the SBAT offset boundary check (bsc#1265042) * Advance the comparison event pointer after comparison * Partially support shim extra files * Locate shim extra files * Synthesize shim extra events * Fix various issues from review by Claude Code and introduce adversarial testing ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory moderate SuSE installation instructions integer underflow pcr-oracle

References

* bsc#1265042

* bsc#1265871

Affected Products:

* SUSE Linux Micro 6.1

An update that has two fixes can now be installed.

##

* https://bugzilla.suse.com/show_bug.cgi?id=1265042

* https://bugzilla.suse.com/show_bug.cgi?id=1265871

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22459-1
Release Date: 2026-06-30T23:03:29Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE installation instructions integer underflow pcr-oracle

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