CVE-2018-14550 — An issue has been found in third-party PNM decoding associated with libpng 1

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

01What is this vulnerability?

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

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: 2019-07-10T00:00:00.000Z
• Last modified: 2024-08-05T09:29:51.650Z

09References

• security.gentoo.org — https://security.gentoo.org/glsa/201908-02
• www.oracle.com — https://www.oracle.com/security-alerts/cpuApr2021.html
• github.com — https://github.com/glennrp/libpng/issues/246
• github.com — https://github.com/fouzhe/security/tree/master/libpng#stack-buffer-overflow-in-p…
• www.oracle.com — https://www.oracle.com/security-alerts/cpuoct2021.html
• security.netapp.com — https://security.netapp.com/advisory/ntap-20221028-0001/