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Ubuntu Security Notice USN-5900-2

Ubuntu Security Notice 5900-2 - USN-5900-1 fixed vulnerabilities in tar. This update fixes it to Ubuntu 23.04. It was discovered that tar incorrectly handled certain files. An attacker could possibly use this issue to expose sensitive information or cause a crash.

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=========================================================================Ubuntu Security Notice USN-5900-2May 22, 2023tar vulnerability=========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 23.04Summary:tar could be made to crash or expose sensitive informationif it received a specially crafted file.Software Description:- tar: GNU version of the tar archiving utilityDetails:USN-5900-1 fixed vulnerabilities in tar. This update fixes it to Ubuntu 23.04.Original advisory details: It was discovered that tar incorrectly handled certain files. An attacker could possibly use this issue to expose sensitive information or cause a crash.Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 23.04:  tar                             1.34+dfsg-1.2ubuntu0.1In general, a standard system update will make all the necessary changes.References:  https://ubuntu.com/security/notices/USN-5900-2  https://ubuntu.com/security/notices/USN-5900-1  CVE-2022-48303Package Information:  https://launchpad.net/ubuntu/+source/tar/1.34+dfsg-1.2ubuntu0.1

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GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.

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