The regular expression inline.reflinkSearch may cause catastrophic backtracking against some strings.
PoC is the following.
import * as marked from 'marked';
console.log(marked.parse(`[x]: x
\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](\\[\\](`));
Who is impacted?
Anyone who runs untrusted markdown through marked and does not use a worker with a time limit.
Patches
Has the problem been patched?
Yes
What versions should users upgrade to?
4.0.10
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
Do not run untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources.
References
Are there any links users can visit to find out more?
Versions of marked from 0.3.14 until 0.6.2 are vulnerable to Regular Expression Denial of Service. Email addresses may be evaluated in quadratic time, allowing attackers to potentially crash the node process due to resource exhaustion.
Recommendation
Upgrade to version 0.6.2 or later.
Configuration
π Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).
π¦ Automerge: Disabled by config. Please merge this manually once you are satisfied.
β» Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.
π Ignore: Close this PR and you won't be reminded about this update again.
[ ] If you want to rebase/retry this PR, check this box
This PR has been generated by Mend Renovate. View repository job log here.
This PR has been flagged for autoclosing. However, it is being skipped due to the branch being already modified. Please close/delete it manually or report a bug if you think this is in error.
This PR contains the following updates:
0.3.19
->4.0.10
GitHub Vulnerability Alerts
CVE-2022-21681
Impact
What kind of vulnerability is it?
Denial of service.
The regular expression
inline.reflinkSearch
may cause catastrophic backtracking against some strings. PoC is the following.Who is impacted?
Anyone who runs untrusted markdown through marked and does not use a worker with a time limit.
Patches
Has the problem been patched?
Yes
What versions should users upgrade to?
4.0.10
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
Do not run untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources.
References
Are there any links users can visit to find out more?
For more information
If you have any questions or comments about this advisory:
CVE-2022-21680
Impact
What kind of vulnerability is it?
Denial of service.
The regular expression
block.def
may cause catastrophic backtracking against some strings. PoC is the following.Who is impacted?
Anyone who runs untrusted markdown through marked and does not use a worker with a time limit.
Patches
Has the problem been patched?
Yes
What versions should users upgrade to?
4.0.10
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
Do not run untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources.
References
Are there any links users can visit to find out more?
For more information
If you have any questions or comments about this advisory:
GHSA-xf5p-87ch-gxw2
Versions of
marked
from 0.3.14 until 0.6.2 are vulnerable to Regular Expression Denial of Service. Email addresses may be evaluated in quadratic time, allowing attackers to potentially crash the node process due to resource exhaustion.Recommendation
Upgrade to version 0.6.2 or later.
Configuration
π Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).
π¦ Automerge: Disabled by config. Please merge this manually once you are satisfied.
β» Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.
π Ignore: Close this PR and you won't be reminded about this update again.
This PR has been generated by Mend Renovate. View repository job log here.