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Excessive output when parsing Markdown (GHSL-2023-048)

Moderate
kivikakk published GHSA-xxmq-4vph-956w Mar 28, 2023

Package

cargo comrak (Rust)

Affected versions

< 0.17.0

Patched versions

0.17.0

Description

Impact

comrak is vulnerable to the upstream cmark issue, "Issue revealed by fuzzer". A large number of references in a markdown document can trigger an overly large response.

Patches

0.17.0 contains 70f97f3, which limits reference output to a 100Kb maximum.

Workarounds

n/a

References

Severity

Moderate
5.3
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVE ID

No known CVE

Weaknesses

No CWEs

Credits