Multiple vulnerabilities in Git for Windows



Published: 2023-01-17 | Updated: 2023-02-15
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-41903
CVE-2022-23521
CVE-2022-41953
CWE-ID CWE-122
CWE-190
CWE-426
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Git for Windows
Other software / Other software solutions

Vendor Git for Windows

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU71238

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-41903

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error during git archive invocation. A remote attacker can trick the victim into using the application against a specially crafted archive, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Git for Windows: 2.0.0 - 2.39.0.2

External links

http://github.com/git-for-windows/git/releases/tag/v2.39.1.windows.1
http://github.com/git-for-windows/git/releases/tag/v2.35.6.windows.1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Integer overflow

EUVDB-ID: #VU71239

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23521

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input when parsing the .gitattributes attributes. A remote attacker can trick the victim into cloning a specially crafted repository and execute arbitrary code on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Git for Windows: 2.0.0 - 2.39.0.2

External links

http://github.com/git-for-windows/git/releases/tag/v2.39.1.windows.1
http://github.com/git-for-windows/git/releases/tag/v2.35.6.windows.1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Untrusted search path

EUVDB-ID: #VU71240

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-41953

CWE-ID: CWE-426 - Untrusted Search Path

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insecure implementation of the Git GUI's Clone function, which automatically searches and  executes the aspell.exe file after cloning the repository. A remote attacker can trick the victim into cloning a malicious repository and execute arbitrary code on the system by including the malicious aspell.exe file into the repository.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Git for Windows: 2.39.0 - 2.39.0.2

External links

http://github.com/git-for-windows/git/releases/tag/v2.39.1.windows.1
http://github.com/git-for-windows/git/security/advisories/GHSA-v4px-mx59-w99c


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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