PT-2026-1701
CVE-2025-13151
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Published
2026-01-07
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Updated
2026-09-29
Description by
CVSS 3.1
9.8
CriticalMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions
libtasn1 versions prior to 4.21.0
Description
A stack-based buffer overflow exists in the
asn1 expend octet string function of libtasn1. The function does not properly validate the size of input data, leading to a buffer overflow. Libtasn1 is a library used for manipulating ASN.1 objects, including DER/BER encoding and decoding, and is utilized by GnuTLS for handling X.509 structures.Recommendations
Update to version 4.21.0 or later.
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