CVE-2017-7263

NameCVE-2017-7263
DescriptionThe bm_readbody_bmp function in bitmap_io.c in Potrace 1.14 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted BMP image. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-8698.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)
Debian Bugs858763

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
potrace (PTS)wheezy1.10-1vulnerable
wheezy (security)1.10-1+deb7u2vulnerable
jessie1.12-1+deb8u1vulnerable
stretch1.13-3vulnerable
buster, sid1.14-2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
potracesource(unstable)(unfixed)medium858763

Notes

[stretch] - potrace <no-dsa> (Minor issue)
[jessie] - potrace <no-dsa> (Minor issue)
[wheezy] - potrace <no-dsa> (Minor issue)
https://blogs.gentoo.org/ago/2017/03/03/potrace-heap-based-buffer-overflow-in-bm_readbody_bmp-bitmap_io-c-incomplete-fix-for-cve-2016-8698/
Proposed patch: https://github.com/asarubbo/poc/blob/master/00219-potrace-heapoverflow-bm_readbody_bmp-PATCH
This CVE is for an incomplete fix of CVE-2016-8698

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