GNU Tar up to 1.34 V7 Archive list.c from_header out-of-bounds

Summaryinfo

A vulnerability, which was classified as problematic, was found in GNU Tar up to 1.34. The impacted element is the function from_header of the file list.c of the component V7 Archive Handler. The manipulation results in out-of-bounds. This vulnerability is reported as CVE-2022-48303. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in GNU Tar up to 1.34. It has been classified as problematic. Affected is the function from_header of the file list.c of the component V7 Archive Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

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.

The weakness was disclosed 01/30/2023. The advisory is shared for download at savannah.gnu.org. This vulnerability is traded as CVE-2022-48303 since 01/30/2023. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 211745 (CBL Mariner 2.0 Security Update: tar (CVE-2022-48303)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (211745). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• GNU

Name

• Tar

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34

License

• open-source

Website

• Vendor: https://www.gnu.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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