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Ubuntu 24.04 LTS USN-6736-2 Moderate: Klibc Memory Issue

ubuntu
Calendar Grey May 23, 2024
Dist Ubuntu Esm H88
A critical klibc update has been released to address several security vulnerabilities for Ubuntu users, ensuring enhanced system protection and stability
Several security issues were fixed in klibc.

Summary

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 c...

Read the Full Advisory

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

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6736-2

Package Information

   https://launchpad.net/ubuntu/+source/klibc/2.0.13-4ubuntu0.1

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