Description
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Linux / Linux kernel2.6.39
References
- MAILING_LISThttp://marc.info/?l=linux-cifs&m=130204730006155&w=2
- MAILING_LISThttp://marc.info/?l=linux-cifs&m=130204357001849&w=2
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2011/05/09/2
- MISChttp://securityreason.com/securityalert/8367
- MISChttp://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=703016
- MISChttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7797069305d13252fd66cf722aa8f2cbeb3c95cd