CVE-2017-9847

Name	CVE-2017-9847
Description	The bdecode function in bdecode.cpp in libtorrent 1.1.3 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	865845

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libtorrent-rasterbar (PTS)	bullseye	1.2.9-0.3	fixed
	bookworm	2.0.8-1	fixed
	sid, trixie	2.0.10-1.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libtorrent-rasterbar	source	wheezy	(not affected)
libtorrent-rasterbar	source	(unstable)	1.1.4-1			865845

Notes

[stretch] - libtorrent-rasterbar <no-dsa> (Minor issue)
[jessie] - libtorrent-rasterbar <no-dsa> (Minor issue)
[wheezy] - libtorrent-rasterbar <not-affected> (new bdecode introduced in 1.1.0; vulnerable code not present)
https://github.com/arvidn/libtorrent/issues/2099
Fixed by: https://github.com/arvidn/libtorrent/commit/ec30a5e9ec703afb8abefba757c6d401303b53db
Pre-1.1.0 versions possibly similarly affected in lazy_bdecode.cpp