RHSA-2026:28253 Red Hat Security Advisory: libtasn1 security update

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RHSA-2026:28235 Red Hat Security Advisory: libtasn1 security update

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RHEL 9 : libtasn1 (RHSA-2026:28253)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:28253 advisory. A library that provides Abstract Syntax Notation One ASN.1, as specified by the X.680 ITU-T recommendation parsing and structures management, and...

libtasn1: libtasn1: Denial of Service via stack-based buffer overflow in asn1_expend_octet_string

A flaw was found in libtasn1. A remote attacker could exploit a stack-based buffer overflow vulnerability in the asn1expendoctetstring function. This occurs due to a failure in validating the size of input data. Successful exploitation can lead to a Denial of Service DoS condition, making the...

Low: Red Hat Security Advisory: libtasn1 security update

An update for libtasn1 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CV...

Low: Red Hat Security Advisory: libtasn1 security update

An update for libtasn1 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

libtasn1: libtasn1: Denial of Service via stack-based buffer overflow in asn1_expend_octet_string

A flaw was found in libtasn1. A remote attacker could exploit a stack-based buffer overflow vulnerability in the asn1expendoctetstring function. This occurs due to a failure in validating the size of input data. Successful exploitation can lead to a Denial of Service DoS condition, making the...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a speciall...

Astra Linux – Vulnerability in libtasn1-6

A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even cause the system to crash. This flaw allows an attacker to send a specially crafted...

EulerOS Virtualization 2.13.0 : libtasn1 (EulerOS-SA-2026-2177)

According to the versions of the libtasn1 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data resulting in a...

EulerOS Virtualization 2.13.1 : libtasn1 (EulerOS-SA-2026-2138)

According to the versions of the libtasn1 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data resulting in a...

Astra Linux - уязвимость в libtasn1-6

GNU Libtasn1-4.13 libtasn1-4.13 version. libtasn1-4.13 contains a DoS vulnerability. Specifically, CPU usage will reach 100% when running asn1Paser against the POC due to a problem in asn1expandobjectidptree. After some time, the program will terminate. This vulnerability seems to be exploitable ...

Astra Linux - уязвимость в libtasn1-6

Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data, resulting in a buffer overflow in asn1expendoctetstring...

CLSA-2026-1778604436 libtasn1: Fix of CVE-2018-6003

CVE-2018-6003: Restrict recursion depth in asn1decodesimpleber to prevent stack exhaustion DoS via crafted indefinite-length BER input...

Astra Linux – Vulnerability in libtasn1-6

GNU Libtasn1 before version 4.19.0 has a array size check for the ETYPEOK field that can lead to errors. This issue affects the asn1encodesimpleder function...

CLSA-2026-1776328800 libtasn1: Fix of CVE-2025-13151

CVE-2025-13151: fix stack-based buffer overflow in asn1expandoctetstring, asn1expandobjectid...

CLSA-2026-1776184861 libtasn1: Fix of CVE-2025-13151

CVE-2025-13151: fix stack-based buffer overflow in asn1expandoctetstring, asn1expandobjectid...

Low: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: libtasn1: libtasn1-4.21.0-1.1.hum1 aarch64, x8664 libtasn1-devel-4.21.0-1.1.hum1 aarch64, x8664 libtasn1-tools-4.21.0-1.1.hum1 aarch64, x8664 libtasn1-4.21.0-1.1.hum1.src src...

openSUSE 16 Security Update : libtasn1 (openSUSE-SU-2026:20470-1)

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:20470-1 advisory. - CVE-2025-13151: lack of validation of input data size leads to stack-based buffer overflow in asn1expendoctetstring bsc1256341. Tenable has extracted...

OPENSUSE-SU-2026:20470-1 Security update for libtasn1

This update for libtasn1 fixes the following issues: - CVE-2025-13151: lack of validation of input data size leads to stack-based buffer overflow in asn1expendoctetstring bsc1256341...