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

🗓️ 23 Jun 2026 23:58:10Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 18 Views

Libtasn1 remote DoS via stack overflow in asn1_expend_octet_string from input size validation failure.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in IBM MQ Agent images
27 Jul 202612:10
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Multiple Security Vulnerabilities in the Containerized Version of IBM Guardium Key Lifecycle Manager
24 Jul 202614:11
–ibm
freebsd
FreeBSD		libtasn1 -- Stack-based buffer overflow
7 Jan 202600:00
–freebsd
nessus
Tenable Nessus		Amazon Linux 2023 : libtasn1, libtasn1-devel, libtasn1-tools (ALAS2023-2026-1395)
5 Feb 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : libtasn1, --advisory ALAS2-2026-3143 (ALAS-2026-3143)
5 Feb 202600:00
–nessus
nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0199: libtasn1 (ALINUX3-SA-2026:0199)
16 Jul 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 10 : libtasn1 (ALSA-2026:28235)
24 Jun 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 9 : libtasn1 (ALSA-2026:28253)
26 Jun 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : libtasn1 (ALSA-2026:36728)
9 Jul 202600:00
–nessus
nessus
Tenable Nessus		EulerOS 2.0 SP13 : libtasn1 (EulerOS-SA-2026-1250)
10 Mar 202600:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64libtasn14.16.0-10.el9_8libtasn1-4.16.0-10.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8i686libtasn14.16.0-10.el9_8libtasn1-4.16.0-10.el9_8.i686.rpm
Red Hat Enterprise Linux9.8ppc64lelibtasn14.16.0-10.el9_8libtasn1-4.16.0-10.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xlibtasn14.16.0-10.el9_8libtasn1-4.16.0-10.el9_8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64libtasn14.16.0-10.el9_8libtasn1-4.16.0-10.el9_8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64libtasn1-debuginfo4.16.0-10.el9_8libtasn1-debuginfo-4.16.0-10.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8i686libtasn1-debuginfo4.16.0-10.el9_8libtasn1-debuginfo-4.16.0-10.el9_8.i686.rpm
Red Hat Enterprise Linux9.8ppc64lelibtasn1-debuginfo4.16.0-10.el9_8libtasn1-debuginfo-4.16.0-10.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xlibtasn1-debuginfo4.16.0-10.el9_8libtasn1-debuginfo-4.16.0-10.el9_8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64libtasn1-debuginfo4.16.0-10.el9_8libtasn1-debuginfo-4.16.0-10.el9_8.x86_64.rpm
Rows per page

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23 Jul 2026 13:23Current
7.9High risk
Vulners AI Score7.9
CVSS 3.17.5
EPSS0.01128
SSVC
CWE-120
libtasn1asn1_expend_octet_stringinput size validationdenial of serviceremote attackerstack overflowunix
18