Description
Integer overflow in the tr_bitfieldEnsureNthBitAlloced function in bitfield.c in Transmission before 2.84 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted peer message, which triggers an out-of-bounds write.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | transmission | 2.84-0.1 | — |
| Debian 13 | transmission | 2.84-0.1 | — |
| Debian 12 | transmission | 2.84-0.1 | — |
| Debian 7 | transmission | 2.52-3+nmu2 | DSA-2988-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | transmission | 2.82-1.1ubuntu3.1 | USN-2279-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | transmission | 2.92-3.1 | openSUSE-SU-2024:10272-1 |
Advisories 3
- DSA-2988-1 transmission - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2279-1 transmission vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:10272-1 transmission-2.92-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- FEDORA-2014-8331 vendor-advisory
- https://trac.transmissionbt.com/wiki/Changes#version-2.84
- [oss-security] 20140710 CVE request: transmission peer communication vulnerability mailing-list
- 68487 vdb-entry
- https://bugs.gentoo.org/show_bug.cgi?id=516822
- [oss-security] 20140711 Re: CVE request: transmission peer communication vulnerability mailing-list
- 60108 third-party-advisory
- 60527 third-party-advisory
- 59897 third-party-advisory
- DSA-2988 vendor-advisory
- http://inertiawar.com/submission.go
- USN-2279-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1118290
- https://twitter.com/benhawkes/statuses/484378151959539712
- openSUSE-SU-2014:0980 vendor-advisory
- 108997 vdb-entry