CVE-2019-1010177 — Jsish 2

Jsish 2.4.70 2.047 is affected by: Use After Free. The impact is: denial of service and possibly arbitrary code execution. The component is: function Jsi_RegExpNew (jsi/jsiRegexp.c:39). The attack vector is: executing crafted javascript code. The fixed version is: after commit 48

01What is this vulnerability?

Jsish 2.4.70 2.047 is affected by: Use After Free. The impact is: denial of service and possibly arbitrary code execution. The component is: function Jsi_RegExpNew (jsi/jsiRegexp.c:39). The attack vector is: executing crafted javascript code. The fixed version is: after commit 48a66c798d.

02Affected products

Vendor	Product	Versions
Jsish	Jsi	2.4.70 2.047 [fixed: after commit 48a66c798d]

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: 2019-07-24T11:52:20.000Z
• Last modified: 2024-08-05T03:07:18.412Z

09References

• jsish.org — https://jsish.org/fossil/jsi/tktview?name=65c8965977