CVE-2022-48303

Name: CVE-2022-48303
Creator: NVD / NIST
Published: 2023-01-30T04:15:08.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 4.52%

Last modified Jun 17, 2026

CVE-2022-48303 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. EPSS estimates a 4.52% chance of exploitation in the next 30 days.

Description

GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

4.52%

90.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnu	Tar	<= 1.34
Fedoraproject	Fedora	37
Fedoraproject	Fedora	38

References

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CRY7VEL4AIG3GLIEVCTOXRZNSVYDYYUD/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5VQYCO52Z7GAVCLRYUITN7KXHLRZQS4/Mailing List, Third Party Advisory
https://savannah.gnu.org/bugs/?62387Exploit, Vendor Advisory
https://savannah.gnu.org/patch/?10307Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CRY7VEL4AIG3GLIEVCTOXRZNSVYDYYUD/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5VQYCO52Z7GAVCLRYUITN7KXHLRZQS4/Mailing List, Third Party Advisory
https://savannah.gnu.org/bugs/?62387Exploit, Vendor Advisory
https://savannah.gnu.org/patch/?10307Patch, Vendor Advisory

Timeline

Published: Jan 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-48303?

How severe is CVE-2022-48303?

CVE-2022-48303 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 4.52% probability of exploitation in the next 30 days.

How do I fix CVE-2022-48303?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-48303?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST