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,...

CVE-2026-6681

The PKCS7 decode path ignores the caller-supplied output buffer size outputSz, allowing decoded content to be written past the bounds of the provided buffer. This affects wolfSSL 5.9.0 and earlier and was fixed in the 5.9.1 release...

ALPINE-CVE-2026-34180

Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap buffer over-read on 64-bit Unix and Unix-like platforms. Impact summary: The heap buffer over-read may crash the application Denial of Service or to...

DEBIAN-CVE-2026-5188

An integer underflow issue exists in wolfSSL when parsing the Subject Alternative Name SAN extension of X.509 certificates. A malformed certificate can specify an entry length larger than the enclosing sequence, causing the internal length counter to wrap during parsing. This results in incorrect...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS : pyasn1 vulnerabilities (USN-8134-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8134-1 advisory. It was discovered that pyasn1 could exhaust system resources when attempting to decode a malformed certificate. An...

CLSA-2025-1763418416 gnutls: Fix of CVE-2024-12243

CVE-2024-12243: fix inefficient algorithm in libtasn1 for decoding certain DER-encoded certificate data to prevent denial-of-service condition...

SUSE SLED15: libfreebl3 / libfreebl3-32bit / libsoftokn3 / libsoftokn3-32bit / etc (SUSE-SU-2025:3804-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:3804-1 advisory. - Move NSS DB password hash away from SHA-1 Update to NSS 3.112.2: Prevent leaks during pkcs12 decoding...

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,...

EUVD-2022-3867

Malicious code in bioql PyPI...

Linux Distros Unpatched Vulnerability : CVE-2019-15651

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wolfSSL 4.1.0 has a one-byte heap-based buffer over-read in DecodeCertExtensions in wolfcrypt/src/asn.c because reading the ASNBOOLEAN byte is mishandled for a...

OESA-2025-1176 gnutls security update

GnuTLS is a secure communications library implementing the SSL, TLS and DTLS protocols and technologies around them. It provides a simple C language application programming interface API to access the secure communications protocols as well as APIs to parse and write X.509, PKCS 12, and other...

SUSE CVE-2024-12243

A flaw was found 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 specially...

ALPINE-CVE-2024-12243

A flaw was found 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 specially...

SUSE CVE-2022-1473

The OPENSSLLHflush function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will...

ALPINE-CVE-2022-1473

The OPENSSLLHflush function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will...

RUSTSEC-2022-0025 Resource leakage when decoding certificates and keys

The OPENSSLLHflush function, which empties a hash table, contains a bug that breaks reuse of the memory occupied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will...

UBUNTU-CVE-2022-1473

The OPENSSLLHflush function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will...

CVE-2019-5275

USG9500 with versions of V500R001C30;V500R001C60 have a denial of service vulnerability. Due to a flaw in the X.509 implementation in the affected products which can result in a heap buffer overflow when decoding a certificate, an attacker may exploit the vulnerability by a malicious certificate ...

CVE-2017-15341

Huawei AR3200 V200R008C20, V200R008C30, TE40 V600R006C00, TE50 V600R006C00, TE60 V600R006C00 have a denial of service vulnerability. The software decodes X.509 certificate in an improper way. A remote unauthenticated attacker could send a crafted X.509 certificate to the device. Successful exploi...

Denial of Service Vulnerability in Multiple Huawei Products (CNVD-2017-35588)

Huawei AR3200 is a new generation network product from China's Huawei Huawei.Huawei TE40/50/60 is an HD video conferencing endpoint that supports 1080p60. The denial of service vulnerability in multiple Huawei products is due to a problem with the device decoding X.509 certificates. A remote...