CVE-2019-19817 — The JBIG2Decode library in npdf

The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0x2e8a Out-of-Bounds Read via crafted Unicode content.

01What is this vulnerability?

The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0x2e8a Out-of-Bounds Read via crafted Unicode content.

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: 2019-12-16T20:08:00.000Z
• Last modified: 2024-08-05T02:25:12.694Z

09References

• nafiez.github.io — https://nafiez.github.io/security/vulnerability/remote/2019/12/12/multiple-nitro…
• github.com — https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-12-12-multipl…