CVE-2018-17581 — CiffDirectory::readDirectory() at crwimage_int

CiffDirectory::readDirectory() at crwimage_int.cpp in Exiv2 0.26 has excessive stack consumption due to a recursive function, leading to Denial of service.

01What is this vulnerability?

CiffDirectory::readDirectory() at crwimage_int.cpp in Exiv2 0.26 has excessive stack consumption due to a recursive function, leading to Denial of service.

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: 2018-09-28T00:00:00.000Z
• Last modified: 2024-08-05T10:54:09.248Z

09References

• github.com — https://github.com/Exiv2/exiv2/issues/460
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2019/02/msg00038.html
• usn.ubuntu.com — https://usn.ubuntu.com/3852-1/
• github.com — https://github.com/SegfaultMasters/covering360/blob/master/Exiv2
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:2101
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html