Stack-based Buffer Overflow Affecting libzypp package, versions <17.38.13-160000.1.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.82% (56th percentile)

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  • Snyk IDSNYK-SLES1600-LIBZYPP-17439635
  • published24 Jun 2026
  • disclosed19 Jun 2026

Introduced: 19 Jun 2026

CVE-2026-48863  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 libzypp to version 17.38.13-160000.1.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libzypp package and not the libzypp package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

A flaw was found in libsolv. A stack-based buffer overflow vulnerability exists in the PGP verification component due to incorrect length handling when copying EdDSA 's' MPI into a stack buffer. A remote attacker could craft a malicious Ed25519 PGP signature with mismatched MPI lengths. Processing this crafted signature could lead to a denial of service in automated package or repository processing workflows.

CVSS Base Scores

version 3.1