========================================================================== Ubuntu Security Notice USN-6736-2 May 23, 2024
klibc vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS Summary: Several security issues were fixed in klibc. Software Description: - klibc: small utilities built with klibc for early boot Details: USN-6736-1 fixed vulnerabilities in klibc. This update provides the corresponding updates for Ubuntu 24.04 LTS. Original advisory details:It was discovered that zlib, vendored in klibc, incorrectly handled pointer
arithmetic. An attacker could use this issue to cause klibc to crash or to possibly execute arbitrary code. (CVE-2016-9840, CVE-2016-9841) Danilo Ramos discovered that zlib, vendored in klibc, incorrectly handled memory when performing certain deflating operations. An attacker could use this issue to cause klibc to crash or to possibly execute arbitrary code. (CVE-2018-25032)Evgeny Legerov discovered that zlib, vendored in klibc, incorrectly handled
memory when performing certain inflate operations. An attacker could use this issue to cause klibc to crash or to possibly execute arbitrary code. (CVE-2022-37434) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS klibc-utils 2.0.13-4ubuntu0.1 libklibc 2.0.13-4ubuntu0.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6736-2 https://ubuntu.com/security/notices/USN-6736-1 CVE-2016-9840, CVE-2016-9841, CVE-2018-25032, CVE-2022-37434 Package Information: https://launchpad.net/ubuntu/+source/klibc/2.0.13-4ubuntu0.1
OpenPGP_signature.asc
Description: OpenPGP digital signature
