| Name | CVE-2016-8650 |
| Description | The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent. |
| 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) | 6.1.112-1 | fixed |
| trixie | 6.11.7-1 | fixed |
| sid | 6.11.9-1 | 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 | (not affected) | | | |
| linux | source | jessie | 3.16.39-1 | | | |
| linux | source | (unstable) | 4.8.11-1 | | | |
Notes
[wheezy] - linux <not-affected> (Vulnerable code introduced later)
http://seclists.org/fulldisclosure/2016/Nov/76
Proposed fix: https://lkml.org/lkml/2016/11/23/477
Fixed by: https://git.kernel.org/linus/f5527fffff3f002b0a6b376163613b82f69de073
Introduced by https://git.kernel.org/linus/cdec9cb5167ab1113ba9c58e395f664d9d3f9acb (v3.3-rc1)
https://bugzilla.redhat.com/show_bug.cgi?id=1343162 (not yet opened)