CVE-2016-8650

medium

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.

References

Advisories
More

https://github.com/torvalds/linux/commit/f5527fffff3f002b0a6b376163613b82f69de073

http://www.openwall.com/lists/oss-security/2016/11/24/8

https://source.android.com/security/bulletin/2017-03-01.html

https://bugzilla.redhat.com/show_bug.cgi?id=1395187

https://access.redhat.com/errata/RHSA-2018:1854

https://access.redhat.com/errata/RHSA-2017:0933

https://access.redhat.com/errata/RHSA-2017:0932

https://access.redhat.com/errata/RHSA-2017:0931

http://www.securitytracker.com/id/1037968

http://www.securityfocus.com/bid/94532

http://seclists.org/fulldisclosure/2016/Nov/76

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5527fffff3f002b0a6b376163613b82f69de073

Details

Source: Mitre, NVD

Published: 2016-11-28

Updated: 2025-04-12

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00045