RHSA-2026:33125 Red Hat Security Advisory: gnutls and libtasn1 security update

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Important: Red Hat Security Advisory: gnutls and libtasn1 security update

An update for multiple packages is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

RHSA-2026:30850 Red Hat Security Advisory: gnutls and libtasn1 security update

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RHSA-2026:30849 Red Hat Security Advisory: gnutls and libtasn1 security update

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libtasn1: Inefficient DER Decoding in libtasn1 Leading to Potential Remote DoS

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 crash the system. This flaw allows an attacker to send a specially crafted certificate,...

Important: Red Hat Security Advisory: gnutls and libtasn1 security update

An update for multiple packages is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

libtasn1: Inefficient DER Decoding in libtasn1 Leading to Potential Remote DoS

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 crash the system. This flaw allows an attacker to send a specially crafted certificate,...

Important: Red Hat Security Advisory: gnutls and libtasn1 security update

An update for multiple packages is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

RHEL 8 : gnutls and libtasn1 (RHSA-2026:30849)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:30849 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such a...

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...

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 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...

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...

Astra Linux – Vulnerability in libtasn1-6

GNU Libtasn1-4.13 libtasn1-4.13 version. The libtasn1-4.13 and libtasn1-4.12 versions contain 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...

Astra Linux – Vulnerability in 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...

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...