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Use of Out-of-range Pointer Offset The advisory has been revoked - it doesn't affect any version of package distribution  (opens in a new tab)

Threat Intelligence

EPSS
0.37% (28th percentile)

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  • Snyk IDSNYK-RHEL10-DISTRIBUTION-20377481
  • published2 Oct 2026
  • disclosed29 Sept 2026
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Introduced: 29 Sep 2026

NewCVE-2026-63209  (opens in a new tab)
CWE-823  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream distribution package and not the distribution package as distributed by RHEL.

compress provides various compression algorithms. Prior to version 1.18.7, a signed integer overflow vulnerability in s2.NewDict() allows an attacker to bypass repeat index validation by supplying a dictionary with a uvarint-encoded repeat value exceeding MaxInt64. When Dict.Encode() is subsequently called, the overflowed negative repeat value causes an out-of-bounds memory access via unsafe.Pointer arithmetic, crashing the process with SIGSEGV. This issue has been patched in version 1.18.7.

References