This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of 7Z files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. References: https://www.zerodayinitiative.com/advisories/ZDI-23-1165/ https://github.com/p7zip-project/p7zip/issues/224
Created p7zip tracking bugs for this issue: Affects: epel-all [bug 2241102] Affects: fedora-all [bug 2241103]