========================================================================== Ubuntu Security Notice USN-7975-1 January 22, 2026
pyasn1 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: pyasn1 could be made to crash if it received specially crafted input. Software Description: - pyasn1: ASN.1 library for Python Details: It was discovered that pyasn1 incorrectly handled malformed RELATIVE-OIDs with excessive continuation octets. An attacker could possibly use this issue to cause pyasn1 to consume memory, leading to a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 python3-pyasn1 0.6.1-1ubuntu0.1 Ubuntu 24.04 LTS python3-pyasn1 0.4.8-4ubuntu0.1 Ubuntu 22.04 LTS python3-pyasn1 0.4.8-1ubuntu0.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7975-1 CVE-2026-23490 Package Information: https://launchpad.net/ubuntu/+source/pyasn1/0.6.1-1ubuntu0.1 https://launchpad.net/ubuntu/+source/pyasn1/0.4.8-4ubuntu0.1 https://launchpad.net/ubuntu/+source/pyasn1/0.4.8-1ubuntu0.1
signature.asc
Description: OpenPGP digital signature
