Memory Consumption Vulnerability in Tar by GNU
CVE-2021-20193

3.3LOW

Key Information:

Vendor

Gnu
Status
Tar
Vendor
CVE Published:
26 March 2021

What is CVE-2021-20193?

A flaw exists in the behavior of GNU Tar, specifically in src/list.c, that allows an attacker to induce uncontrolled memory consumption by submitting a specially crafted input file. This vulnerability poses threats to the availability of the system, as it can potentially lead to resource exhaustion if exploited effectively.

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Deploy the Patch

Affected Version(s)

tar 1.33 and earlier

References

https://bugzilla.redhat.com/show_bug.cgi?id=1917565
x_refsource_MISC
https://savannah.gnu.org/bugs/?59897
x_refsource_MISC
https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4...
x_refsource_MISC

CVSS V3.1

Score:
3.3
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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