SUSE-SU-2022:1128-1 Security update for libsolv, libzypp

Not scored Published

A memory corruption vulnerability in SUSE's package manager libraries allows attackers to cause a denial of service via crafted package metadata.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is SUSE-SU-2022:1128-1?

SUSE-SU-2022:1128-1 is a memory corruption vulnerability in libsolv, published on 7 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

This update for libsolv, libzypp fixes the following issues:

libsolv to 0.6.39:

  • fix memory leaks in SWIG generated code
  • fix misparsing of '&' in attributes with libxml2
  • try to keep packages from a cycle close togther in the transaction order (bsc#1189622)
  • fix split provides not working if the update includes a forbidden vendor change (bsc#1195485)
  • fix segfault on conflict resolution when using bindings
  • do not replace noarch problem rules with arch dependent ones in problem reporting
  • fix and simplify pool_vendor2mask implementation
  • bump version to 0.6.39

libzypp to 16.22.4:

  • Hint on ptf resolver conflicts (bsc#1194848)
  • Fix package signature check (bsc#1184501) Pay attention that header and payload are secured by a valid signature and report more detailed which signature is missing.
  • Set ZYPP_RPM_DEBUG=1 to capture verbose rpm command output.

Which versions are affected by SUSE-SU-2022:1128-1?

Linux distribution packages (2)
libsolv SUSE:Linux Enterprise Server 12 SP2-BCLAll versions0.6.39-2.27.32.2
libzypp SUSE:Linux Enterprise Server 12 SP2-BCLAll versions16.22.4-27.85.2

How do I fix SUSE-SU-2022:1128-1?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is SUSE-SU-2022:1128-1 being exploited?

There is no known exploitation of SUSE-SU-2022:1128-1 in the wild and no public exploit code.

Sources

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