CVE-2021-33645 is a memory leak vulnerability in the th_read() function of libtar, affecting various Fedora and OpenEuler distributions. This high-severity flaw (CVSS 7.5) allows an unauthenticated attacker to cause a denial of service by exhausting system memory. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.2.21CPE matchmatch criteria | cpe:2.3:a:feep:libtar:*:*:*:*:*:*:*:* | ||
20.03CPE matchmatch criteria | cpe:2.3:o:openatom:openeuler:20.03:sp1:*:*:lts:*:*:* | ||
20.03CPE matchmatch criteria | cpe:2.3:o:openatom:openeuler:20.03:sp3:*:*:lts:*:*:* | ||
22.03CPE matchmatch criteria | cpe:2.3:o:openatom:openeuler:22.03:*:*:*:lts:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
CVE-2021-33645
Jun 11, 2024libtar: memory leak found in th_read() function
Aug 10, 2022The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory which may cause a memory leak.
Aug 9, 2022