CVE-2018-7640 — An issue was discovered in CImg v

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image, a different vulnerability than CVE-2018-7588. This is in a Monochrome case, aka case 1.

01What is this vulnerability?

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image, a different vulnerability than CVE-2018-7588. This is in a Monochrome case, aka case 1.

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: 2018-03-02T14:00:00.000Z
• Last modified: 2024-08-05T06:31:05.028Z

09References

• github.com — https://github.com/dtschump/CImg/issues/185
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2019/09/msg00030.html
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/10/msg00033.html