vulnerability
Red Hat: CVE-2021-33644: out-of-bounds read in gnu_longname (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:H/Au:N/C:C/I:N/A:C) | Aug 10, 2022 | May 17, 2023 | Mar 27, 2026 |
Severity
7
CVSS
(AV:N/AC:H/Au:N/C:C/I:N/A:C)
Published
Aug 10, 2022
Added
May 17, 2023
Modified
Mar 27, 2026
Description
An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read.
Solutions
redhat-upgrade-libtarredhat-upgrade-libtar-debuginforedhat-upgrade-libtar-debugsource
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.