Medium severity · published Jun 27, 2016
CVE-2016-4470
The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to…
5.5
CVSS
0.6%
EPSS
No
On KEV
Description
The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
through 4.6.3 · source: NVD
EL
Enterprise Linux · Redhat
6.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux For Real Time · Redhat
7.0 · source: NVD
EL
Enterprise Linux Hpc Node · Redhat
7.0 · source: NVD
EL
Enterprise Linux Hpc Node Eus · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.2 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.2 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
EM
Enterprise Mrg · Redhat
2.0 · source: NVD
LI
Linux · Oracle
5.0; 6; 7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4470
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4470
Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html
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