heimdal

Heimdal Heimdal is an implementation of: ASN.1/DER, PKIX, and Kerberos. For information how to install see here. There are man pages for most of the commands. Bug reports and bugs are appreciated. Use GitHub issues. For more information see the project homepage https://heimdal.software/heimdal/ o...

TWSL2011-007_iOS_code_workaround

= testcert Reference implementation for TWSL2011-007 vulnerability workaround aka CVE-2011-0228. Author: Eric Monti Date: July 28, 2011 = Compiling Compile with your Apple iOS SDK CFLAGS along with: gcc -o testcert testcert.m -framework Foundation -framework Security The compile arguments above...

go-pkcs12

package pkcs12 import "software.sslmate.com/src/go-pkcs12" Package pkcs12 implements some of PKCS12 also known as P12 or PFX. It is intended for decoding DER-encoded P12/PFX files for use with the crypto/tls package, and for encoding P12/PFX files for use by legacy applications which do not suppo...

PYSEC-2026-4298 python-jose algorithm confusion guard bypassed by DER-encoded public keys

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

python-jose algorithm confusion guard bypassed by DER-encoded public keys

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : PyJWT vulnerabilities (USN-8916-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8916-1 advisory. YuSung Han discovered that PyJWT did not properly validate certain JWK keys when performing HMAC...

CVE-2026-73260 Mongoose: Out-of-bounds Read via length-counter underflow in built-in TLS X.509 DER parser

Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TLS certificate parser selected by MGTLSBUILTIN fails to verify that a long-form DER element length fits within the remaining certificate buffer. In mgdertotlv and mgdernext, a peer-controlled length can advance t...

CVE-2026-73260 Mongoose: Out-of-bounds Read via length-counter underflow in built-in TLS X.509 DER parser

Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TLS certificate parser selected by MGTLSBUILTIN fails to verify that a long-form DER element length fits within the remaining certificate buffer. In mgdertotlv and mgdernext, a peer-controlled length can advance t...

CVE-2026-73260

Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TLS certificate parser selected by MGTLSBUILTIN fails to verify that a long-form DER element length fits within the remaining certificate buffer. In mgdertotlv and mgdernext, a peer-controlled length can advance t...

CVE-2026-73260

The Mongoose embedded web server and network library is vulnerable to an out-of-bounds read due to a length-counter underflow in its built-in TLS X.509 DER parser (prior to version 7.23 ). Specifically, the functions mg_der_to_tlv() and mg_der_next() fail to verify if a long-form DER element leng...

USN-8916-1 pyjwt vulnerabilities

YuSung Han discovered that PyJWT did not properly validate certain JWK keys when performing HMAC verification. An attacker could possibly use this issue to forge authentication tokens. This issue only affected Ubuntu 26.04 LTS. CVE-2026-102266 Rohan Das discovered that PyJWT incorrectly handled...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : pyasn1 vulnerabilities (USN-8712-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8712-1 advisory. It was discovered that pyasn1 did not properly bound the size of long-form tag identifiers when parsing BER, CER, or DER encoded...

EulerOS 2.0 SP11 : python-pyasn1 (EulerOS-SA-2026-4279)

According to the versions of the python-pyasn1 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the univ.Real type converted its mantissa, base, and exponent value to a Pyth...

EulerOS 2.0 SP13 : python-pyasn1 (EulerOS-SA-2026-4188)

According to the versions of the python-pyasn1 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the univ.Real type converted its mantissa, base, and exponent value to a Pyth...

EulerOS 2.0 SP13 : python-pyasn1 (EulerOS-SA-2026-4097)

According to the versions of the python-pyasn1 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the univ.Real type converted its mantissa, base, and exponent value to a Pyth...

EulerOS 2.0 SP11 : python-pyasn1 (EulerOS-SA-2026-4369)

According to the versions of the python-pyasn1 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the univ.Real type converted its mantissa, base, and exponent value to a Pyth...

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 mbedtls

A issue was discovered in Arm Mbed TLS before version 2.24.0. The function mbedtlsx509crlparseder has a buffer over-read of one byte...

Astra Linux – Vulnerability in libtomcrypt

In LibTomCrypt version 1.18.2, the derdecodeutf8string function located in derdecodeutf8string.c does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service such as out-of-bounds reads and crashes or to read information from other...

Astra Linux – Vulnerability in nss, Thunderbird

Versions of NSS Network Security Services prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications that use NSS to handle signatures encoded within CMS, S/MIME, PKCS \7, or PKCS \12 are likely to be affected. Applications that...