AlmaLinux alert ALSA-2026:28253 (libtasn1)

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[Announce] [Security Advisory] ALSA-2026:28253: libtasn1 security update (Low)
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Thu, 25 Jun 2026 15:09:01 +0000
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<0100019eff53c79d-a086cdad-7e32-4d60-a6b6-81d5e351fdcc-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Low
Release date: 2026-06-25

Summary:

A library that provides Abstract Syntax Notation One (ASN.1, as specified by the X.680 ITU-T
recommendation) parsing and structures management, and Distinguished Encoding Rules (DER, as per
X.690) encoding and decoding functions.  

Security Fix(es):  

  * libtasn1: libtasn1: Denial of Service via stack-based buffer overflow in
asn1_expend_octet_string (CVE-2025-13151)


For more details about the security issue(s), including the impact, a CVSS score, acknowledgments,
and other related information, refer to the CVE page(s) listed in the References section.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/9/ALSA-2026-28253.html

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AlmaLinux Team
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