The smbhash function in fs/cifs/smbencrypt.c in the Linux kernel 4.9.x...
Vulnerability Description
The smbhash function in fs/cifs/smbencrypt.c in the Linux kernel 4.9.x before 4.9.1 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a scatterlist.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.securityfocus.com/bid/95714
- http://www.openwall.com/lists/oss-security/2017/01/21/3
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.1
- https://github.com/torvalds/linux/commit/06deeec77a5a689cc94b21a8a91a76e42176685d
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06deeec77a5a689cc94b21a8a91a76e42176685d
- https://bugzilla.redhat.com/show_bug.cgi?id=1416104
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CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.