CVE-2018-5759 — jsparse

jsparse.c in Artifex MuJS through 1.0.2 does not properly maintain the AST depth for binary expressions, which allows remote attackers to cause a denial of service (excessive recursion) via a crafted file.

01What is this vulnerability?

jsparse.c in Artifex MuJS through 1.0.2 does not properly maintain the AST depth for binary expressions, which allows remote attackers to cause a denial of service (excessive recursion) via a crafted file.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-01-24T21:00:00.000Z
• Last modified: 2024-08-05T05:40:51.268Z

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/102833
• bugs.ghostscript.com — https://bugs.ghostscript.com/show_bug.cgi?id=698868
• git.ghostscript.com — http://git.ghostscript.com/?p=mujs.git%3Ba=commit%3Bh=4d45a96e57fbabf00a7378b337…
• www.exploit-db.com — https://www.exploit-db.com/exploits/43904/