Input validation error in Git - CVE-2019-1349

Vulnerability identifier: #VU23494

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-1349

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to insufficient validation of user-supplied input within the Git for Visual Studio. A remote attacker can convince the user to clone a malicious repo and execute arbitrary code on the target system.

Git
Amazon Linux AMI
Arch Linux
Gentoo Linux
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Opensuse
Fedora
libgit2 (Alpine package)
libgit2-1.0 (Alpine package)
git (Alpine package)
git (Ubuntu package)
git (Debian package)
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
libgit2
git
Red Hat Software Collections
Visual Studio

Install updates from vendor's website.

Git - addressed in versions 2.14.6, 2.15.4, 2.16.6, 2.17.3, 2.18.2, 2.19.3, 2.20.2, 2.21.1, 2.22.2, 2.23.1, 2.24.1
libgit2 (Alpine package) - update to 0.28.4-r0
libgit2-1.0 (Alpine package) - update to 1.0.1-r1
git (Ubuntu package) - addressed in versions 1:2.7.4-0ubuntu1.7, 1:2.17.1-1ubuntu0.5, 1:2.20.1-2ubuntu1.19.04.1, 1:2.20.1-2ubuntu1.19.10.1
git (Debian package) - addressed in versions 1:2.11.0-3+deb9u5, 1:2.20.1-2+deb10u1
git (Alpine package) - addressed in versions 2.15.4-r0, 2.18.2-r0
libgit2 - update to 0.28.4-1.fc31
git - addressed in versions 2.21.1-1.fc30, 2.24.1-1.fc31

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1349

• Multiple vulnerabilities in Microsoft Git for Visual Studio
• Amazon Linux AMI update for git
• Debian update for git
• Ubuntu update for Git
• Multiple vulnerabilities in Git
• Arch Linux update for git
• Arch Linux update for libgit2
• Red Hat update for git
• Red Hat update for rh-git218-git
• OpenSUSE Linux update for git
• Red Hat update for git
• Gentoo update for Git
• OpenSUSE Linux update for git
• Input validation error in git (Alpine package)
• Input validation error in libgit2 (Alpine package)
• Input validation error in libgit2-1.0 (Alpine package)
• Fedora 30 update for git
• Fedora 31 update for git
• Fedora 31 update for libgit2