CVE-2016-8883 Jasper Project CVE debrief

Who should care

Organizations that deploy JasPer to parse or transcode untrusted JPEG-2000 content should care most, especially teams responsible for application servers, document/image pipelines, security gateways, and desktop software that may open user-supplied files. Package maintainers and downstream distributors should also verify whether they ship a vulnerable JasPer release.

Technical summary

NVD lists the affected product as jasper_project:jasper with vulnerable versions ending at 1.900.7. The reported flaw is an assertion failure in jpc_dec_tiledecode within jpc_dec.c, reachable through a crafted input file. The published CVSS vector is CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H, which indicates a user-assisted availability issue. The CVE description states remote attackers can trigger the denial of service via crafted file input, so defenders should treat any workflow that processes attacker-controlled files as exposed.

Defensive priority

Medium. This is not listed in KEV in the supplied corpus and the available evidence points to denial of service rather than deeper compromise, but any crash in a file parser can still disrupt services that accept untrusted content.

Recommended defensive actions

• Upgrade JasPer to 1.900.8 or later in all supported environments.
• Inventory applications, libraries, and appliances that embed or depend on JasPer and confirm the shipped version.
• Prioritize fixes for any service that processes user-uploaded or otherwise untrusted image files.
• Review crash handling and isolation around image parsing workflows so a parser failure does not take down the entire service.
• Verify downstream vendor advisories and packages, including Red Hat and Ubuntu updates referenced in the source corpus, for the appropriate fixed builds.

Evidence notes

The CVE description states that jpc_dec_tiledecode in jpc_dec.c is vulnerable to an assertion failure denial of service via a crafted file, and the NVD CPE criteria restrict affected versions to JasPer 1.900.7 and earlier. The source corpus also includes a patch-related GitHub issue and downstream advisories from Red Hat and Ubuntu. One notable detail is that the NVD CVSS vector uses AV:L and UI:R even though the description says remote attackers can cause the issue; defenders should interpret exposure based on whether untrusted files are processed in a user-assisted context.

Official resources