CVE-2019-12973 — In OpenJPEG 2

In OpenJPEG 2.3.1, 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. This issue is similar to CVE-2018-6616.

01What is this vulnerability?

In OpenJPEG 2.3.1, 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. This issue is similar to CVE-2018-6616.

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

08Timeline

• Published: 2019-06-26T17:07:51.000Z
• Last modified: 2024-08-04T23:41:09.694Z

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/108900
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00090.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00088.html
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/07/msg00008.html
• www.oracle.com — https://www.oracle.com/security-alerts/cpujul2020.html
• github.com — https://github.com/uclouvain/openjpeg/pull/1185/commits/cbe7384016083eac16078b35…
• github.com — https://github.com/uclouvain/openjpeg/commit/8ee335227bbcaf1614124046aa25e53d67b…
• security.gentoo.org — https://security.gentoo.org/glsa/202101-29
• www.oracle.com — https://www.oracle.com//security-alerts/cpujul2021.html