CVE-2017-17724 — In Exiv2 0

In Exiv2 0.26, there is a heap-based buffer over-read in the Exiv2::IptcData::printStructure function in iptc.cpp, related to the "!= 0x1c" case. Remote attackers can exploit this vulnerability to cause a denial of service via a crafted TIFF file.

01What is this vulnerability?

In Exiv2 0.26, there is a heap-based buffer over-read in the Exiv2::IptcData::printStructure function in iptc.cpp, related to the "!= 0x1c" case. Remote attackers can exploit this vulnerability to cause a denial of service via a crafted TIFF 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: 2018-02-12T22:00:00.000Z
• Last modified: 2024-08-05T20:59:17.632Z

09References

• github.com — https://github.com/Exiv2/exiv2/issues/263
• github.com — https://github.com/xiaoqx/pocs/blob/master/exiv2/readme.md
• security.gentoo.org — https://security.gentoo.org/glsa/201811-14
• bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=1524107
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:2101