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CVE-2016-2543Date: (C)2016-04-28   (M)2018-07-26


The snd_seq_ioctl_remove_events function in sound/core/seq/seq_clientmgr.c in the Linux kernel before 4.4.1 does not verify FIFO assignment before proceeding with FIFO clearing, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted ioctl call.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 6.2CVSS Score : 4.9
Exploit Score: 2.5Exploit Score: 3.9
Impact Score: 3.6Impact Score: 6.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: COMPLETE
Integrity: NONE 
Availability: HIGH 
  
Reference:
SECTRACK-1035304
BID-83377
DSA-3503
SUSE-SU-2016:0911
SUSE-SU-2016:1102
SUSE-SU-2016:2074
USN-2929-1
USN-2929-2
USN-2930-1
USN-2930-2
USN-2930-3
USN-2931-1
USN-2932-1
USN-2967-1
USN-2967-2
http://www.openwall.com/lists/oss-security/2016/01/19/1
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=030e2c78d3a91dd0d27fef37e91950dde333eba1
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
https://bugzilla.redhat.com/show_bug.cgi?id=1311554
https://github.com/torvalds/linux/commit/030e2c78d3a91dd0d27fef37e91950dde333eba1

OVAL    12
oval:org.secpod.oval:def:703099
oval:org.secpod.oval:def:703103
oval:org.secpod.oval:def:703022
oval:org.secpod.oval:def:602404
...

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