CVE-2019-0542 — A remote code execution vulnerability exists in Xterm

A remote code execution vulnerability exists in Xterm.js when the component mishandles special characters, aka "Xterm Remote Code Execution Vulnerability." This affects xterm.js.

01What is this vulnerability?

A remote code execution vulnerability exists in Xterm.js when the component mishandles special characters, aka "Xterm Remote Code Execution Vulnerability." This affects xterm.js.

02Affected products

Vendor	Product	Versions
https:	/xtermjs.org/ / xterm.js	xterm.js

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: 2019-01-09T15:00:00.000Z
• Last modified: 2024-08-04T17:51:26.827Z

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/106434
• access.redhat.com — https://access.redhat.com/errata/RHBA-2019:0959
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:1422
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:2552
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:2551
• github.com — https://github.com/xtermjs/xterm.js/releases