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Debian: DLA-2981-1 Moderate: Lrzip DoS Due To Crafted Files

Several security vulnerabilities have been discovered in lrzip, a compression program. Invalid pointers, use-after-free and infinite loops would allow attackers to cause a denial of service or possibly other unspecified impact via a crafted compressed file. . - ------------------------------------------------------------------------- Debian LTS Advisory DLA-2981-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/lts/security/ Sylvain Beucler April 13, 2022 https://wiki.debian.org/LTS - ------------------------------------------------------------------------- Package : lrzip Version : 0.631-1+deb9u2 CVE ID : CVE-2018-5786 CVE-2020-25467 CVE-2021-27345 CVE-2021-27347 CVE-2022-26291 Debian Bug : 888506 990583 Several security vulnerabilities have been discovered in lrzip, a compression program. Invalid pointers, use-after-free and infinite loops would allow attackers to cause a denial of service or possibly other unspecified impact via a crafted compressed file. CVE-2018-5786 There is an infinite loop and application hang in the get_fileinfo function (lrzip.c). Remote attackers could leverage this vulnerability to cause a denial of service via a crafted lrz file. CVE-2020-25467 A null pointer dereference was discovered lzo_decompress_buf in stream.c which allows an attacker to cause a denial of service (DOS) via a crafted compressed file. CVE-2021-27345 A null pointer dereference was discovered in ucompthread in stream.c which allows attackers to cause a denial of service (DOS) via a crafted compressed file. CVE-2021-27347 Use after free in lzma_decompress_buf function in stream.c in allows attackers to cause Denial of Service (DoS) via a crafted compressed file. CVE-2022-26291 lrzip was discovered to contain a multiple concurrency use-after-free between the functions zpaq_decompress_buf() and clear_rulist(). This vulnerabilityallows attackers to cause a Denial of Service (DoS) via a crafted lrz file. For Debian 9 stretch, these problems have been fixed in version 0.631-1+deb9u2. We recommend that you upgrade your lrzip packages. For the detailed security status of lrzip please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/lrzip Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS . Debian LTS Advisory DLA-2982-1 tackles vulnerabilities found in zlib library, introducing patches to mitigate potential exploitation risks.. Debian Security Update, Lrzip Security, Denial of Service, Debian Advisory. . Severity: Important. LinuxSecurity.com Team

Apr 13, 2022 •Important Debian LTS