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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://github.com/torvalds/linux/commit/f5527fffff3f002b0a6b376163613b82f69de073 ↗
- http://www.securitytracker.com/id/1037968 ↗
- http://seclists.org/fulldisclosure/2016/Nov/76 ↗
- http://www.openwall.com/lists/oss-security/2016/11/24/8 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1395187 ↗
- https://access.redhat.com/errata/RHSA-2018:1854 ↗
- https://access.redhat.com/errata/RHSA-2017:0932 ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5527fffff3f002b0a6b376163613b82f69de073 ↗
- https://access.redhat.com/errata/RHSA-2017:0933 ↗
- https://access.redhat.com/errata/RHSA-2017:0931 ↗
- http://www.securityfocus.com/bid/94532 ↗
- https://source.android.com/security/bulletin/2017-03-01.html ↗