OESA-2022-1650

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OESA-2022-1650

Summary: xz security update

Details: XZ Utils is free general-purpose data compression software with a high compression ratio. XZ Utils were written for POSIX-like systems, but also work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils. The core of the XZ Utils compression code is based on LZMA SDK, but it has been modified quite a lot to be suitable for XZ Utils. The primary compression algorithm is currently LZMA2, which is used inside the .xz container format. With typical files, XZ Utils create 30% smaller output than gzip and 15% smaller output than bzip2. Security Fix(es): The vulnerability exists due to insufficient validation when handling filenames with two or more newlines. A remote attacker can force zgrep or xzgrep to write arbitrary files on the system. The vulnerability allows a remote attacker to compromise an affected system.(CVE-2022-1271)

References: https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1650, https://nvd.nist.gov/vuln/detail/CVE-2022-1271