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EUVD-2016-9489 · Published Nov 28, 2016
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.
Technologies
Linux Linux Kernel
Weaknesses
CWE-20CWE-399
CVSS scores
- v3.05.5
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - v2.04.9
AV:L/AC:L/Au:N/C:N/I:N/A:C
MITRE ATT&CK
InferredWhere this vulnerability fits in an attack
Privilege Escalation
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5527fffff3f002b0a6b376163613b82f69de073
- http://seclists.org/fulldisclosure/2016/Nov/76
- http://www.openwall.com/lists/oss-security/2016/11/24/8
- http://www.securityfocus.com/bid/94532
- http://www.securitytracker.com/id/1037968
- https://access.redhat.com/errata/RHSA-2017:0931
Potentially impacted assets
See if this affects your attack surface
