NULL pointer dereference in Linux Kernel
CVE-2011-1771
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- marc.info/ (mailing-list, Third Party Advisory)
- marc.info/ (mailing-list, Exploit, Third Party Advisory)
- www.openwall.com/lists/oss-security/2011/05/09/2 (mailing-list, Exploit, Patch, Mailing List, Third Party Advisory)
- securityreason.com/securityalert/8367 (Third Party Advisory, third-party-advisory)
- www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 (Release Notes, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, Third Party Advisory, Issue Tracking)
- git.kernel.org/
Frequently asked questions
- What is CVE-2011-1771?
- CVE-2011-1771 is a high-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 7.8/10. Published 2011-09-06.
- How severe is CVE-2011-1771?
- High severity. CVSS v3 base score is 7.8 out of 10.