UBUNTU-CVE-2023-22742

See a problem?
Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2023-22742
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-22742.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-22742
Related
Published
2023-01-20T23:15:00Z
Modified
2023-01-20T23:15:00Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

libgit2 is a cross-platform, linkable library implementation of Git. When using an SSH remote with the optional libssh2 backend, libgit2 does not perform certificate checking by default. Prior versions of libgit2 require the caller to set the certificate_check field of libgit2's git_remote_callbacks structure - if a certificate check callback is not set, libgit2 does not perform any certificate checking. This means that by default - without configuring a certificate check callback, clients will not perform validation on the server SSH keys and may be subject to a man-in-the-middle attack. Users are encouraged to upgrade to v1.4.5 or v1.5.1. Users unable to upgrade should ensure that all relevant certificates are manually checked.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libgit2

Package

Name
libgit2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.19.0-2
0.19.0-2ubuntu0.4
0.19.0-2ubuntu0.4+esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / libgit2

Package

Name
libgit2
Purl
pkg:deb/ubuntu/libgit2@0.24.1-2ubuntu0.2+esm2?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.24.1-2ubuntu0.2+esm2

Affected versions

0.*

0.22.2-2
0.23.1-1
0.24.1-2
0.24.1-2ubuntu0.2
0.24.1-2ubuntu0.2+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libgit2-dev": "0.24.1-2ubuntu0.2+esm2",
            "libgit2-24-dbgsym": "0.24.1-2ubuntu0.2+esm2",
            "libgit2-24": "0.24.1-2ubuntu0.2+esm2"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / libgit2

Package

Name
libgit2
Purl
pkg:deb/ubuntu/libgit2@0.26.0+dfsg.1-1.1ubuntu0.2+esm1?arch=src?distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.26.0+dfsg.1-1.1ubuntu0.2+esm1

Affected versions

0.*

0.25.1+really0.24.6-1
0.26.0+dfsg.1-1.1
0.26.0+dfsg.1-1.1build1
0.26.0+dfsg.1-1.1ubuntu0.2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libgit2-26-dbgsym": "0.26.0+dfsg.1-1.1ubuntu0.2+esm1",
            "libgit2-dev": "0.26.0+dfsg.1-1.1ubuntu0.2+esm1",
            "libgit2-26": "0.26.0+dfsg.1-1.1ubuntu0.2+esm1"
        }
    ]
}

Ubuntu:20.04:LTS / libgit2

Package

Name
libgit2
Purl
pkg:deb/ubuntu/libgit2@0.28.4+dfsg.1-2ubuntu0.1?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.28.4+dfsg.1-2ubuntu0.1

Affected versions

0.*

0.27.7+dfsg.1-0.2build1
0.28.3+dfsg.1-1
0.28.3+dfsg.1-1ubuntu1
0.28.4+dfsg.1-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libgit2-28": "0.28.4+dfsg.1-2ubuntu0.1",
            "libgit2-dev": "0.28.4+dfsg.1-2ubuntu0.1",
            "libgit2-28-dbgsym": "0.28.4+dfsg.1-2ubuntu0.1"
        }
    ]
}

Ubuntu:22.04:LTS / libgit2

Package

Name
libgit2
Purl
pkg:deb/ubuntu/libgit2@1.1.0+dfsg.1-4.1ubuntu0.1?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.0+dfsg.1-4.1ubuntu0.1

Affected versions

1.*

1.1.0+dfsg.1-4
1.1.0+dfsg.1-4.1
1.1.0+dfsg.1-4.1build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libgit2-1.1-dbgsym": "1.1.0+dfsg.1-4.1ubuntu0.1",
            "libgit2-fixtures": "1.1.0+dfsg.1-4.1ubuntu0.1",
            "libgit2-dev": "1.1.0+dfsg.1-4.1ubuntu0.1",
            "libgit2-1.1": "1.1.0+dfsg.1-4.1ubuntu0.1"
        }
    ]
}

Ubuntu:24.04:LTS / libgit2

Package

Name
libgit2
Purl
pkg:deb/ubuntu/libgit2@1.5.1+ds-1ubuntu1?arch=src?distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1+ds-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libgit2-fixtures": "1.5.1+ds-1ubuntu1",
            "libgit2-1.5": "1.5.1+ds-1ubuntu1",
            "libgit2-dev": "1.5.1+ds-1ubuntu1",
            "libgit2-1.5-dbgsym": "1.5.1+ds-1ubuntu1"
        }
    ]
}