Debian update for git



Risk High
Patch available YES
Number of vulnerabilities 8
CVE-ID CVE-2023-25652
CVE-2023-25815
CVE-2023-29007
CVE-2024-32002
CVE-2024-32004
CVE-2024-32020
CVE-2024-32021
CVE-2024-32465
CWE-ID CWE-59
CWE-345
CWE-20
CWE-434
CWE-94
CWE-62
CWE-61
Exploitation vector Network
Public exploit Public exploit code for vulnerability #3 is available.
Public exploit code for vulnerability #4 is available.
Vulnerable software
Subscribe 		Debian Linux
Operating systems & Components / Operating system

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

Vendor Debian

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Link following

EUVDB-ID: #VU75484

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

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 git package to version 1:2.39.5-0+deb12u1.

Vulnerable software versions

Debian Linux: All versions

git (Debian package): before 1:2.39.5-0+deb12u1

CPE2.3 External links

http://lists.debian.org/debian-security-announce/2024/msg00182.html


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

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

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 git package to version 1:2.39.5-0+deb12u1.

Vulnerable software versions

Debian Linux: All versions

git (Debian package): before 1:2.39.5-0+deb12u1

CPE2.3 External links

http://lists.debian.org/debian-security-announce/2024/msg00182.html


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

CVSSv3.1: 3.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C]

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 git package to version 1:2.39.5-0+deb12u1.

Vulnerable software versions

Debian Linux: All versions

git (Debian package): before 1:2.39.5-0+deb12u1

CPE2.3 External links

http://lists.debian.org/debian-security-announce/2024/msg00182.html


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.

4) Arbitrary file upload

EUVDB-ID: #VU89491

Risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2024-32002

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote attacker can upload a malicious file and execute it on the server.

Mitigation

Update git package to version 1:2.39.5-0+deb12u1.

Vulnerable software versions

Debian Linux: All versions

git (Debian package): before 1:2.39.5-0+deb12u1

CPE2.3 External links

http://lists.debian.org/debian-security-announce/2024/msg00182.html


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.

5) Code Injection

EUVDB-ID: #VU89490

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-32004

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to a process control issue while cloning special-crafted local repositories. A remote attacker can execute arbitrary code on the target system.

Mitigation

Update git package to version 1:2.39.5-0+deb12u1.

Vulnerable software versions

Debian Linux: All versions

git (Debian package): before 1:2.39.5-0+deb12u1

CPE2.3 External links

http://lists.debian.org/debian-security-announce/2024/msg00182.html


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.

6) UNIX Hard Link

EUVDB-ID: #VU91286

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-32020

CWE-ID: CWE-62 - UNIX Hard Link

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the original repository.

The vulnerability exists due to insecure hardlink following when working with local clones. Local clones may end up hardlinking files into the target repository's object database when source and target repository reside on the same disk. If the source repository is owned by a different user, then those hardlinked files may be rewritten at any point in time by the untrusted user.

Mitigation

Update git package to version 1:2.39.5-0+deb12u1.

Vulnerable software versions

Debian Linux: All versions

git (Debian package): before 1:2.39.5-0+deb12u1

CPE2.3 External links

http://lists.debian.org/debian-security-announce/2024/msg00182.html


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.

7) UNIX symbolic link following

EUVDB-ID: #VU91287

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-32021

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the original repository.

The vulnerability exists due to insecure symlink following issue. When cloning a local source repository that contains symlinks via the filesystem, Git may create hardlinks to arbitrary user-readable files on the same filesystem as the target repository in the objects/ directory.


Mitigation

Update git package to version 1:2.39.5-0+deb12u1.

Vulnerable software versions

Debian Linux: All versions

git (Debian package): before 1:2.39.5-0+deb12u1

CPE2.3 External links

http://lists.debian.org/debian-security-announce/2024/msg00182.html


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.

8) Code injection

EUVDB-ID: #VU91288

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-2024-32465

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation when working with zip files or tarballs during cloning. A remote attacker can and execute arbitrary code on the target system.

Mitigation

Update git package to version 1:2.39.5-0+deb12u1.

Vulnerable software versions

Debian Linux: All versions

git (Debian package): before 1:2.39.5-0+deb12u1

CPE2.3 External links

http://lists.debian.org/debian-security-announce/2024/msg00182.html


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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