Bug 2184925 (CVE-2023-28626) - CVE-2023-28626 rust-comrak: quadratic runtime when parsing Markdown
Summary: CVE-2023-28626 rust-comrak: quadratic runtime when parsing Markdown
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2023-28626
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2184926
Blocks: 2182640
TreeView+ depends on / blocked
 
Reported: 2023-04-06 08:27 UTC by Dhananjay Arunesh
Modified: 2023-04-06 13:36 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2023-04-06 13:36:16 UTC
Embargoed:

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Description Dhananjay Arunesh 2023-04-06 08:27:09 UTC 
comrak is a CommonMark + GFM compatible Markdown parser and renderer written in rust. A range of quadratic parsing issues are present in Comrak. These can be used to craft denial-of-service attacks on services that use Comrak to parse Markdown. This issue has been addressed in version 0.17.0. Users are advised to upgrade. There are no known workarounds for this vulnerability. This issue is also tracked as `GHSL-2023-047`

References:
https://github.com/kivikakk/comrak/commit/ce795b7f471b01589f842dc09af38b025701178d
https://github.com/kivikakk/comrak/security/advisories/GHSA-8hqf-xjwp-p67v
Comment 1 Dhananjay Arunesh 2023-04-06 08:27:29 UTC 
Created rust-comrak tracking bugs for this issue:

Affects: fedora-all [bug 2184926]
Comment 2 Product Security DevOps Team 2023-04-06 13:36:14 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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