CVE-2018-3835 — An exploitable out of bounds write vulnerability exists in version 2

An exploitable out of bounds write vulnerability exists in version 2.2 of the Per Face Texture mapping application known as PTEX. The vulnerability is present in the reading of a file without proper parameter checking. The value read in, is not verified to be valid and its use ca

01What is this vulnerability?

An exploitable out of bounds write vulnerability exists in version 2.2 of the Per Face Texture mapping application known as PTEX. The vulnerability is present in the reading of a file without proper parameter checking. The value read in, is not verified to be valid and its use can lead to a buffer overflow, potentially resulting in code execution.

02Affected products

Vendor	Product	Versions
Talos	Walt Disney Animation Studios PTEX	2.2

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: 2018-01-29T20:00:00.000Z
• Last modified: 2024-09-16T16:42:37.311Z

09References

• www.talosintelligence.com — https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0515