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Message-ID: <637c6490-f8cf-42d7-8799-bbe0de4136ea@cpansec.org>
Date: Tue, 31 Mar 2026 12:35:49 +0100
From: Robert Rothenberg <rrwo@...nsec.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2024-14031: Sereal::Encoder versions from 4.000 through 4.009_002
for Perl is vulnerable to a buffer overwrite flaw in the Zstandard library
========================================================================
CVE-2024-14031 CPAN Security Group
========================================================================
CVE ID: CVE-2024-14031
Distribution: Sereal-Encoder
Versions: from 4.000 through 4.009_002
MetaCPAN: https://metacpan.org/dist/Sereal-Encoder
VCS Repo: https://github.com/Sereal/Sereal
Sereal::Encoder versions from 4.000 through 4.009_002 for Perl is
vulnerable to a buffer overwrite flaw in the Zstandard library
Description
-----------
Sereal::Encoder versions from 4.000 through 4.009_002 for Perl is
vulnerable to a buffer overwrite flaw in the Zstandard library.
Sereal::Encoder embeds a version of the Zstandard (zstd) library that
is vulnerable to CVE-2019-11922. This is a race condition in the
one-pass compression functions of Zstandard prior to version 1.3.8
could allow an attacker to write bytes out of bounds if an output
buffer smaller than the recommended size was used.
Problem types
-------------
- CWE-1395 Dependency on Vulnerable Third-Party Component
Solutions
---------
Upgrade to Sereal::Encoder version 4.010 or later.
References
----------
https://github.com/advisories/GHSA-w77f-wv46-4vcx
https://www.cve.org/CVERecord?id=CVE-2019-11922
https://metacpan.org/release/YVES/Sereal-Encoder-4.010/changes
Timeline
--------
- 2017-02-06: Sereal::Encoder version 4.001_001 released.
- 2028-12-27: Zstandard 1.3.8 released.
- 2019-07-25: CVE-2019-11922 for Zstandard published
- 2020-02-04: Sereal::Encoder version 4.010 released.
- 2023-02-09: Advisory added to the CPANSA database.
- 2024-02-17: Advisory updated in the CPANSA database.
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