CVE-2018-6616 — In OpenJPEG 2

In OpenJPEG 2.3.0, there is excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.

01What is this vulnerability?

In OpenJPEG 2.3.0, there is excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.

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: 2018-02-04T22:00:00.000Z
• Last modified: 2024-08-05T06:10:10.765Z

09References

• lists.debian.org — https://lists.debian.org/debian-lts-announce/2018/12/msg00013.html
• www.debian.org — https://www.debian.org/security/2019/dsa-4405
• usn.ubuntu.com — https://usn.ubuntu.com/4109-1/
• www.oracle.com — https://www.oracle.com/security-alerts/cpujul2020.html
• github.com — https://github.com/uclouvain/openjpeg/issues/1059