Out-of-bounds Read in Gnu Tar
CVE-2021-20193
A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw allows an attacker who can submit a crafted input file to tar to cause uncontrolled consumption of memory. The highest threat from this vulnerability is to system availa…
EPSS: 0.011 (61.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Gnu Tar
- N/a Tar — versions 1.33 and earlier
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- secalert@redhat.com (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2021-20193?
- CVE-2021-20193 is a low-severity vulnerability in Gnu Tar, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 3.3/10. Published 2021-03-26.
- How severe is CVE-2021-20193?
- Low severity. CVSS v3 base score is 3.3 out of 10.
- Is CVE-2021-20193 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.