| Name | CVE-2015-8374 |
| Description | fs/btrfs/inode.c in the Linux kernel before 4.3.3 mishandles compressed inline extents, which allows local users to obtain sensitive pre-truncation information from a file via a clone action. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| linux (PTS) | jessie, jessie (lts) | 3.16.84-1 | fixed |
| stretch (security) | 4.9.320-2 | fixed |
| stretch (lts), stretch | 4.9.320-3 | fixed |
| buster (security), buster, buster (lts) | 4.19.316-1 | fixed |
| bullseye | 5.10.223-1 | fixed |
| bullseye (security) | 5.10.226-1 | fixed |
| bookworm | 6.1.115-1 | fixed |
| bookworm (security) | 6.1.119-1 | fixed |
| trixie | 6.12.5-1 | fixed |
| sid | 6.12.6-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| linux | source | wheezy | 3.2.78-1 | | | |
| linux | source | jessie | 3.16.7-ckt20-1+deb8u1 | | | |
| linux | source | (unstable) | 4.2.6-2 | | | |
| linux-2.6 | source | (unstable) | (unfixed) | | | |
Notes
[squeeze] - linux-2.6 <no-dsa> (btrfs in 2.6.32 is just a tech preview and not usable for production)
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0305cd5f7fca85dae392b9ba85b116896eb7c1c7 (v4.4-rc1)
https://www.openwall.com/lists/oss-security/2015/11/27/2
CVE assignment for the vulnerability with the impact of "User B now
gets to see the 1000 bytes that user A truncated from its file before
it made its file world readable"