Integer overflow in cpio - CVE-2021-38185

 

Integer overflow in cpio - CVE-2021-38185

Published: August 16, 2021 / Updated: January 30, 2024


Vulnerability identifier: #VU55853
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2021-38185
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: GNU
Affected software:
cpio

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in the "ds_fgetstr" parameter in "dstring.c". A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2021-38185

Install update from vendor's website.

Sources