Advisory Details

October 21st, 2022

GNU Gzip zgrep Argument Injection Remote Code Execution Vulnerability

CVE ID
CVSS SCORE	7.0, AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS	GNU
AFFECTED PRODUCTS	Gzip
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on affected installations of GNU Gzip. Interaction with this script is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the handling of special characters. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system command. An attacker can leverage this vulnerability to execute code on the system.
ADDITIONAL DETAILS	GNU has issued an update to correct this vulnerability. More details can be found at: https://lists.gnu.org/r/bug-gzip/2022-04/msg00011.html
DISCLOSURE TIMELINE	2022-03-23 - Vulnerability reported to vendor 2022-10-21 - Coordinated public release of advisory
CREDIT	cleemy desu wayo

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