UBUNTU-CVE-2024-32021

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Source

https://ubuntu.com/security/CVE-2024-32021

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-32021.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2024-32021

Related

Published

2024-05-14T20:15:00Z

Modified

2024-10-04T11:32:10Z

Summary

[none]

Details

Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, 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. Cloning a local repository over the filesystem may creating hardlinks to arbitrary user-owned files on the same filesystem in the target Git repository's objects/ directory. When cloning a repository over the filesystem (without explicitly specifying the file:// protocol or --no-local), the optimizations for local cloning will be used, which include attempting to hard link the object files instead of copying them. While the code includes checks against symbolic links in the source repository, which were added during the fix for CVE-2022-39253, these checks can still be raced because the hard link operation ultimately follows symlinks. If the object on the filesystem appears as a file during the check, and then a symlink during the operation, this will allow the adversary to bypass the check and create hardlinks in the destination objects directory to arbitrary, user-readable files. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4.

References

Affected packages

Ubuntu:Pro:18.04:LTS / git

Package

Name: git
Purl: pkg:deb/ubuntu/git?arch=src?distro=esm-infra/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.17.1-1ubuntu0.18+esm1

Affected versions

1:2.*

1:2.14.1-1ubuntu4

1:2.15.1-1ubuntu2

1:2.17.0-1ubuntu1

1:2.17.1-1ubuntu0.1

1:2.17.1-1ubuntu0.3

1:2.17.1-1ubuntu0.4

1:2.17.1-1ubuntu0.5

1:2.17.1-1ubuntu0.6

1:2.17.1-1ubuntu0.7

1:2.17.1-1ubuntu0.8

1:2.17.1-1ubuntu0.9

1:2.17.1-1ubuntu0.10

1:2.17.1-1ubuntu0.11

1:2.17.1-1ubuntu0.12

1:2.17.1-1ubuntu0.13

1:2.17.1-1ubuntu0.14

1:2.17.1-1ubuntu0.15

1:2.17.1-1ubuntu0.16

1:2.17.1-1ubuntu0.17

1:2.17.1-1ubuntu0.18

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-all"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-cvs"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-daemon-run"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-daemon-sysvinit"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-dbgsym"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-doc"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-el"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-email"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-gui"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-man"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-mediawiki"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "git-svn"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "gitk"
        },
        {
            "binary_version": "1:2.17.1-1ubuntu0.18+esm1",
            "binary_name": "gitweb"
        }
    ]
}

Ubuntu:20.04:LTS / git

Package

Name: git
Purl: pkg:deb/ubuntu/git?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.25.1-1ubuntu3.12

Affected versions

1:2.*

1:2.20.1-2ubuntu1

1:2.24.0-1ubuntu1

1:2.24.0-1ubuntu2

1:2.25.0-1ubuntu1

1:2.25.1-1ubuntu1

1:2.25.1-1ubuntu2

1:2.25.1-1ubuntu3

1:2.25.1-1ubuntu3.1

1:2.25.1-1ubuntu3.2

1:2.25.1-1ubuntu3.3

1:2.25.1-1ubuntu3.4

1:2.25.1-1ubuntu3.5

1:2.25.1-1ubuntu3.6

1:2.25.1-1ubuntu3.7

1:2.25.1-1ubuntu3.8

1:2.25.1-1ubuntu3.10

1:2.25.1-1ubuntu3.11

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-all"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-cvs"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-daemon-run"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-daemon-sysvinit"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-dbgsym"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-doc"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-el"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-email"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-gui"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-man"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-mediawiki"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "git-svn"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "gitk"
        },
        {
            "binary_version": "1:2.25.1-1ubuntu3.12",
            "binary_name": "gitweb"
        }
    ]
}

Ubuntu:22.04:LTS / git

Package

Name: git
Purl: pkg:deb/ubuntu/git?arch=src?distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.34.1-1ubuntu1.11

Affected versions

1:2.*

1:2.32.0-1ubuntu1

1:2.33.1-1ubuntu1

1:2.34.1-1ubuntu1

1:2.34.1-1ubuntu1.1

1:2.34.1-1ubuntu1.2

1:2.34.1-1ubuntu1.4

1:2.34.1-1ubuntu1.5

1:2.34.1-1ubuntu1.6

1:2.34.1-1ubuntu1.8

1:2.34.1-1ubuntu1.9

1:2.34.1-1ubuntu1.10

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-all"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-cvs"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-daemon-run"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-daemon-sysvinit"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-dbgsym"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-doc"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-email"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-gui"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-man"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-mediawiki"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "git-svn"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "gitk"
        },
        {
            "binary_version": "1:2.34.1-1ubuntu1.11",
            "binary_name": "gitweb"
        }
    ]
}

Ubuntu:24.04:LTS / git

Package

Name: git
Purl: pkg:deb/ubuntu/git?arch=src?distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.43.0-1ubuntu7.1

Affected versions

1:2.*

1:2.40.1-1ubuntu1

1:2.43.0-1ubuntu1

1:2.43.0-1ubuntu5

1:2.43.0-1ubuntu6

1:2.43.0-1ubuntu7

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-all"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-cvs"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-daemon-run"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-daemon-sysvinit"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-dbgsym"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-doc"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-email"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-gui"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-man"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-mediawiki"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "git-svn"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "gitk"
        },
        {
            "binary_version": "1:2.43.0-1ubuntu7.1",
            "binary_name": "gitweb"
        }
    ]
}