CVE-2015-5685

NameCVE-2015-5685
DescriptionThe lazy_bdecode function in BitTorrent DHT bootstrap server (bootstrap-dht ) allows remote attackers to execute arbitrary code via a crafted packet, related to "improper indexing."
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-312-1
NVD severityhigh (attack range: remote)
Debian Bugs797046

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libtorrent-rasterbar (PTS)wheezy0.15.10-1vulnerable
wheezy (security)0.15.10-1+deb7u1vulnerable
jessie0.16.18-1vulnerable
stretch1.1.1-1fixed
buster, sid1.1.4-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libtorrent-rasterbarsource(unstable)1.0.6-1high797046
libtorrent-rasterbarsourcesqueeze0.14.10-2+deb6u1highDLA-312-1

Notes

[jessie] - libtorrent-rasterbar <no-dsa> (Minor issue)
[wheezy] - libtorrent-rasterbar <no-dsa> (Minor issue)
Even though the CVE mentions BitTorrent DHT Bootstrap server, the vulnerable lazy_bdecode() function is effectively also available in libtorrent-rasterbar in all Debian releases.
Patch on libtorrent-rasterbar that has been applied in 1.0.6: https://github.com/arvidn/libtorrent/commit/d9945f6f50a8c967888cd9c2ebe65ffbe462056e

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