CVE-2016-5301
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a...
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a denial of service (crash) via a crafted (1) HTTP response or possibly a (2) UPnP broadcast.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a denial of service (crash) via a crafted (1) HTTP response or possibly a (2) UPnP broadcast.
- Record
CVE-2016-5301- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a denial of service (crash) via a crafted (1) HTTP response or possibly a (2) UPnP broadcast.
- Record
CVE-2016-5301- Updated
- 2026-11-02
EUVDEUVD-2016-6252 No score
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a denial of service (crash) via a crafted (1) HTTP response or possibly a (2) UPnP broadcast.
- Record
EUVD-2016-6252- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pwqc-6qvc-cw6x
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a...
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a denial of service (crash) via a crafted (1) HTTP response or possibly a (2) UPnP broadcast.
- Record
GHSA-pwqc-6qvc-cw6x- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
OSV
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a denial of service (crash) via a crafted (1) HTTP response or possibly a (2) UPnP broadcast.
- Record
CVE-2016-5301- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2016-5301
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a denial of service (crash) via a crafted (1) HTTP response or possibly a (2) UPnP broadcast.
- Record
DEBIAN-CVE-2016-5301- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2016-5301
The parse_chunk_header function in libtorrent before 1.1.1 allows remote attackers to cause a denial of service (crash) via a crafted (1) HTTP response or possibly a (2) UPnP broadcast.
- Record
UBUNTU-CVE-2016-5301- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVMGASA-2016-0234 No score
Updated libtorrent-rasterbar packages fix security vulnerability
A specially crafted HTTP response from a tracker (or potentially a UPnP broadcast) can crash libtorrent-rasterbar in the parse_chunk_header() function. Although this function is not present in this version, upstream's additional sanity checks were added to abort the program if necessary instead of crashing it (CVE-2016-5301).
- Record
MGASA-2016-0234- Updated
- 2026-11-02
OSVUSN-4790-1 No score
libtorrent vulnerability
It was discovered that libtorrent incorrectly handled chunked headers. A remote attacker could possibly use this to cause a crash resulting in a denial of service.
- Record
USN-4790-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libtorrent-rasterbarDebian:12 |
before 1.1.0-1 | 1.1.0-1 |
libtorrent-rasterbarDebian:13 |
before 1.1.0-1 | 1.1.0-1 |
libtorrent-rasterbarDebian:14 |
before 1.1.0-1 | 1.1.0-1 |
libtorrent-rasterbarDebian:7 |
before 0.15.10-1+deb7u1, plus listed versions 0.15.10-1 |
0.15.10-1+deb7u1 |
libtorrent-rasterbarMageia:5 |
before 0.16.18-1.2.mga5 | 0.16.18-1.2.mga5 |
libtorrent-rasterbarUbuntu:Pro:14.04:LTS |
before 0.16.13-1ubuntu2.1+esm1, plus listed versions 0.16.11-1ubuntu10.16.11-1ubuntu20.16.11-1ubuntu40.16.11-1ubuntu50.16.13-1ubuntu10.16.13-1ubuntu20.16.13-1ubuntu2.1 |
0.16.13-1ubuntu2.1+esm1 |
libtorrent-rasterbarUbuntu:Pro:16.04:LTS |
before 1.0.7-1ubuntu0.1~esm1, plus listed versions 1.0.6-21.0.7-11.0.7-1build1 |
1.0.7-1ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-5301 is a high vulnerability (CVSS 7.5) in Arvidn Libtorrent, published June 11, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.84%, the 86th percentile. Fixed in libtorrent-rasterbar 1.1.0-1.
References
openwall.com/lists/oss-security/2016/06/05/1
lists.opensuse.org/opensuse-updates/2016-06/msg00103.html
securityfocus.com/bid/91498
github.com/arvidn/libtorrent/pull/782/files
Show 11 moreShow less
nvd.nist.gov/vuln/detail/CVE-2016-5301
security-tracker.debian.org/tracker/CVE-2016-5301
advisories.mageia.org/MGASA-2016-0234.html
bugs.mageia.org/show_bug.cgi?id=18624
lwn.net/Alerts/691074
ubuntu.com/security/CVE-2016-5301
cve.org/CVERecord?id=CVE-2016-5301