CVE-2026-43820

NIOSSLCertificate.subjectAlternativeNames provides access to the raw bytes for a cert's SANs. NIOSSL provides access to a buffer assumed to be backed by an ASN1STRING, but not all SANs are backed by ASN1STRING, so accessing the buffer for such a type can lead to out-of-bounds memory access. This...

Linux Distros Unpatched Vulnerability : CVE-2026-7383

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1mbstringncopy can lead to a heap buffer overflow. Impact...

CVE-2026-7383

Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1mbstringncopy can lead to a heap buffer overflow. Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour. In...

CVE-2026-7383

The CVE concerns OpenSSL’s ASN1 mbstring handling (functions ASN1_mbstring_copy() and ASN1_mbstring_ncopy()). A signed integer overflow in sizing the destination buffer for Unicode output can cause a heap buffer overflow, potentially crashing a process or enabling attacker-controlled code executi...

CVE-2026-7668 MikroTik RouterOS SCEP Endpoint scep.p ASN1_STRING_data out-of-bounds

A vulnerability was identified in MikroTik RouterOS 6.49.8. This vulnerability affects the function ASN1STRINGdata in the library nova/lib/www/scep.p of the component SCEP Endpoint. The manipulation of the argument transactionID/messageType leads to out-of-bounds read. The attack may be initiated...

JLSEC-2026-234 Vulnerable OpenSSL included in cryptography wheels

There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1STRING but the public structure definition for GENERALNAME incorrectly specified the type of the x400Address field as ASN1TYPE. This field is subsequentl...

JLSEC-2026-225 Read buffer overruns processing ASN.1 strings

ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL 0 byte...

Hitachi ABB AFS Use After Free (CVE-2023-0215)

There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1STRING but the public structure definition for GENERALNAME incorrectly specified the type of the x400Address field as ASN1TYPE. This plugin only works wi...

Linux Distros Unpatched Vulnerability : CVE-2024-6197

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libcurl's ASN1 parser has this utf8asn1str function used for parsing an ASN.1 UTF-8 string. Itcan detect an invalid field and return error. Unfortunately, when...

SUSE-SU-2025:20029-1 Security update for curl

This update for curl fixes the following issues: Security issues fixed: - CVE-2024-7264: ASN.1 date parser overread bsc1228535 - CVE-2024-6197: Freeing stack buffer in utf8asn1str bsc1227888 - CVE-2024-2379: QUIC certificate check bypass with wolfSSL bsc1221666 - CVE-2024-2466: TLS certificate...

OESA-2024-2092 edk2 security update

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fixes: ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer...

K19559038: OpenSSL vulnerability CVE-2021-3712

Security Advisory Description ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which i...

CVE-2021-3712: ASN1_STRING structure contains a buffer holding the string data

Security Advisory ID : BSA-2022-1587 Component : OpenSSL Revision : 1.0 ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesent...

CLSA-2021-1632262317 Fix of CVE: CVE-2018-0739, CVE-2018-0737, CVE-2021-3712, CVE-2018-0732

fix CVE-2021-3712 - handling ASN.1 string as NULL terminated leads to read buffer overrun - Port patches from oracle6els branch, original changelog entry: - Oracle bug 28730228: backport CVE-2018-0732 - Oracle bug 28758493: backport CVE-2018-0737 - Merge upstream patch to fix CVE-2018-0739 -...

USN-5051-1 openssl vulnerabilities

John Ouyang discovered that OpenSSL incorrectly handled decrypting SM2 data. A remote attacker could use this issue to cause applications using OpenSSL to crash, resulting in a denial of service, or possibly change application behaviour. CVE-2021-3711 Ingo Schwarze discovered that OpenSSL...

AZL-6780 CVE-2021-3712 affecting package openssl for versions less than 1.1.1k-11

ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL 0 byte...

DEBIAN-CVE-2021-3712

ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL 0 byte...

CVE-2021-3712 Read buffer overruns processing ASN.1 strings

ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL 0 byte...

CVE-2021-3712

ASN.1 strings are represented internally within OpenSSL as an ASN1STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL 0 byte...

PHP openssl_x509_parse() Memory Corruption Vulnerability

Exploit for php platform in category dos / poc Overview: Quote from http://www.php.net "PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML." The PHP function opensslx509parse uses a helper function called...