Amazon Linux AMI update for git

Published: 2023-02-06 | Updated: 2023-02-15

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-23521 CVE-2022-41903
CWE-ID	CWE-190 CWE-122
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Amazon Linux AMI Operating systems & Components / Operating system git Operating systems & Components / Operating system package or component
Vendor	Amazon Web Services

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU71239

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

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

Update the affected packages:

i686:
    git-core-2.38.3-1.78.amzn1.i686
    git-2.38.3-1.78.amzn1.i686
    git-svn-2.38.3-1.78.amzn1.i686
    git-subtree-2.38.3-1.78.amzn1.i686
    git-daemon-2.38.3-1.78.amzn1.i686
    git-debuginfo-2.38.3-1.78.amzn1.i686
    git-instaweb-2.38.3-1.78.amzn1.i686

noarch:
    git-p4-2.38.3-1.78.amzn1.noarch
    git-core-doc-2.38.3-1.78.amzn1.noarch
    emacs-git-2.38.3-1.78.amzn1.noarch
    git-email-2.38.3-1.78.amzn1.noarch
    git-hg-2.38.3-1.78.amzn1.noarch
    gitweb-2.38.3-1.78.amzn1.noarch
    git-cvs-2.38.3-1.78.amzn1.noarch
    git-bzr-2.38.3-1.78.amzn1.noarch
    emacs-git-el-2.38.3-1.78.amzn1.noarch
    perl-Git-SVN-2.38.3-1.78.amzn1.noarch
    git-all-2.38.3-1.78.amzn1.noarch
    perl-Git-2.38.3-1.78.amzn1.noarch

src:
    git-2.38.3-1.78.amzn1.src

x86_64:
    git-debuginfo-2.38.3-1.78.amzn1.x86_64
    git-subtree-2.38.3-1.78.amzn1.x86_64
    git-core-2.38.3-1.78.amzn1.x86_64
    git-instaweb-2.38.3-1.78.amzn1.x86_64
    git-daemon-2.38.3-1.78.amzn1.x86_64
    git-svn-2.38.3-1.78.amzn1.x86_64
    git-2.38.3-1.78.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

git: All versions

CPE2.3

External links

https://alas.aws.amazon.com/ALAS-2023-1679.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.

2) Heap-based buffer overflow

EUVDB-ID: #VU71238