Advisory Published

USN-6736-1: klibc vulnerabilities

First published: Tue Apr 16 2024(Updated: )

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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/klibc-utils<2.0.13-1ubuntu0.1
2.0.13-1ubuntu0.1
Ubuntu Ubuntu=23.10
All of
ubuntu/libklibc<2.0.13-1ubuntu0.1
2.0.13-1ubuntu0.1
Ubuntu Ubuntu=23.10
All of
ubuntu/klibc-utils<2.0.10-4ubuntu0.1
2.0.10-4ubuntu0.1
Ubuntu Ubuntu=22.04
All of
ubuntu/libklibc<2.0.10-4ubuntu0.1
2.0.10-4ubuntu0.1
Ubuntu Ubuntu=22.04
All of
ubuntu/klibc-utils<2.0.7-1ubuntu5.2
2.0.7-1ubuntu5.2
Ubuntu Ubuntu=20.04
All of
ubuntu/libklibc<2.0.7-1ubuntu5.2
2.0.7-1ubuntu5.2
Ubuntu Ubuntu=20.04
All of
ubuntu/klibc-utils<2.0.4-9ubuntu2.2+esm1
2.0.4-9ubuntu2.2+esm1
Ubuntu Ubuntu=18.04
All of
ubuntu/libklibc<2.0.4-9ubuntu2.2+esm1
2.0.4-9ubuntu2.2+esm1
Ubuntu Ubuntu=18.04
All of
ubuntu/klibc-utils<2.0.4-8ubuntu1.16.04.4+esm2
2.0.4-8ubuntu1.16.04.4+esm2
Ubuntu Ubuntu=16.04
All of
ubuntu/libklibc<2.0.4-8ubuntu1.16.04.4+esm2
2.0.4-8ubuntu1.16.04.4+esm2
Ubuntu Ubuntu=16.04
All of
ubuntu/klibc-utils<2.0.3-0ubuntu1.14.04.3+esm3
2.0.3-0ubuntu1.14.04.3+esm3
Ubuntu Ubuntu=14.04
All of
ubuntu/libklibc<2.0.3-0ubuntu1.14.04.3+esm3
2.0.3-0ubuntu1.14.04.3+esm3
Ubuntu Ubuntu=14.04

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