Ubuntu update for git



| Updated: 2024-08-16
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-25652
CVE-2023-25815
CVE-2023-29007
CWE-ID CWE-59
CWE-345
CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #3 is available.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

git (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Link following

EUVDB-ID: #VU75484

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-25652

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue in "git apply --reject". A local user can create a specially crafted symbolic link to write files outside of the worktree.

Mitigation

Update the affected package git to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 23.04

git (Ubuntu package): before 1:2.17.1-1ubuntu0.18

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6050-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Insufficient verification of data authenticity

EUVDB-ID: #VU75485

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-25815

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

Exploit availability: No

Description

The vulnerability allows a local user to tamper with Git messages.

The vulnerability exists due to the way Git processes localized messages. A local user on a multi-user machine can display a malicious message to the user.

Mitigation

Update the affected package git to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 23.04

git (Ubuntu package): before 1:2.17.1-1ubuntu0.18

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6050-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

3) Input validation error

EUVDB-ID: #VU75486

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2023-29007

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows an attacker to tamper with Git configuration.

The vulnerability exists due to insufficient input validation in "git submodule deinit" when renaming or deleting a section from a configuration file. A remote attacker can trick the victim into running the command a malicious configuration file and tamper with Git configuration on the affected system.

Mitigation

Update the affected package git to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 23.04

git (Ubuntu package): before 1:2.17.1-1ubuntu0.18

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6050-1


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. However, proof of concept for this vulnerability is available.



###SIDEBAR###