CVE-2021-33643
- State
- Published
- Severity
- 6.5 Medium
- Published
- Aug 9, 2022
- Updated
- Jun 23, 2026
- Reserved
- May 28, 2021
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_longlink, causing an out-of-bounds read.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L | CISA-ADP |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
libtarn/a |
|
References
- https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1807
- FEDORA-2022-fe1a4e3cf0vendor-advisory
- FEDORA-2022-50e8a1b51dvendor-advisory
- FEDORA-2022-44a20bba43vendor-advisory
- FEDORA-2022-88772d0a2dvendor-advisory
- FEDORA-2022-ccc68b06ccvendor-advisory
- https://lists.debian.org/debian-lts-announce/2025/01/msg00026.html
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