Alerts This Week
Warning Icon 1 1,394
Alerts This Week
Warning Icon 1 1,394

Ubuntu 24.10, 24.04 & 20.04 LTS: USN-7319-1 critical: cmark-gfm DoS

ubuntu
Calendar Grey March 4, 2025
Dist Ubuntu Esm H88
Vulnerabilities in cmark-gfm have been addressed, impacting various Ubuntu releases with possible denial of service risks.
Several security issues were fixed in cmark-gfm.

Summary

Several security issues were fixed in cmark-gfm.

Software Description:

- cmark-gfm: CommonMark parsing and rendering program, GitHub flavor

Details:

It was discovered that cmark-gfm's autolink extension did not correctly

handle parsing large inputs. An attacker could possibly use this issue

to cause a denial of service. This issue only affected Ubuntu 20.04 LTS

and Ubuntu 22.04 LTS. (CVE-2022-39209)

It was discovered that cmark-gfm did not correctly handle parsing large

inputs. An attacker could possibly use this issue to cause a denial of

service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and

Ubuntu 24.10. (CVE-2023-22483)

It was discovered that cmark-gfm did not correctly handle parsing large

inputs. An attacker could possibly use this issue to cause a denial of

service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 24.10.

(CVE-2023-22484)

It was discovered that cmark-gfm did not correctly handle parsing large

inputs. An atta...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service security issue Ubuntu cmark-gfm

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.10
   cmark-gfm                       0.29.0.gfm.6-6ubuntu0.24.10.1

Ubuntu 24.04 LTS
   cmark-gfm 0.29.0.gfm.6-6ubuntu0.24.04.1~esm1
                                   Available with Ubuntu Pro

Ubuntu 22.04 LTS
   cmark-gfm                       0.29.0.gfm.3-3ubuntu0.1~esm1
                                   Available with Ubuntu Pro

Ubuntu 20.04 LTS
   cmark-gfm                       0.29.0.gfm.0-4ubuntu0.1~esm1
                                   Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-7319-1

  CVE-2022-39209, CVE-2023-22483, CVE-2023-22484, CVE-2023-22486,

  CVE-2023-26485

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7319-1

Topics%20covered

Topics Covered

security advisory denial of service security issue Ubuntu cmark-gfm

Package Information

https://launchpad.net/ubuntu/+source/cmark-gfm/0.29.0.gfm.6-6ubuntu0.24.10.1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here