UBUNTU-CVE-2022-39209

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Source
https://ubuntu.com/security/CVE-2022-39209
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-39209.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2022-39209
Upstream
Downstream
Related
Published
2022-09-15T18:15:00Z
Modified
2025-10-24T04:53:49Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm's autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by running python3 -c 'print("![l"* 100000 + "\n")' | ./cmark-gfm -e autolink, which will resource exhaust on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in 0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink extension.

References

Affected packages

Ubuntu:Pro:20.04:LTS / cmark-gfm

Package

Name
cmark-gfm
Purl
pkg:deb/ubuntu/cmark-gfm@0.29.0.gfm.0-4ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.29.0.gfm.0-4ubuntu0.1~esm1

Affected versions

0.*

0.28.3.gfm.20-3
0.29.0.gfm.0-3
0.29.0.gfm.0-4

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "cmark-gfm",
            "binary_version": "0.29.0.gfm.0-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcmark-gfm-dev",
            "binary_version": "0.29.0.gfm.0-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcmark-gfm-extensions-dev",
            "binary_version": "0.29.0.gfm.0-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcmark-gfm-extensions0",
            "binary_version": "0.29.0.gfm.0-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcmark-gfm0",
            "binary_version": "0.29.0.gfm.0-4ubuntu0.1~esm1"
        }
    ]
}

Ubuntu:Pro:22.04:LTS / cmark-gfm

Package

Name
cmark-gfm
Purl
pkg:deb/ubuntu/cmark-gfm@0.29.0.gfm.3-3ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.29.0.gfm.3-3ubuntu0.1~esm1

Affected versions

0.*

0.29.0.gfm.0-6
0.29.0.gfm.2-1
0.29.0.gfm.2-1+really.0.29.0.gfm.0ubuntu1
0.29.0.gfm.2-2
0.29.0.gfm.3-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "cmark-gfm",
            "binary_version": "0.29.0.gfm.3-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcmark-gfm-dev",
            "binary_version": "0.29.0.gfm.3-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcmark-gfm-extensions-dev",
            "binary_version": "0.29.0.gfm.3-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcmark-gfm-extensions0.29.0.gfm.3",
            "binary_version": "0.29.0.gfm.3-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libcmark-gfm0.29.0.gfm.3",
            "binary_version": "0.29.0.gfm.3-3ubuntu0.1~esm1"
        }
    ]
}