NULL pointer dereference in Linux Kernel
CVE-2011-2928
The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.9 (Medium). Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.005 (40.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.9% 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
- Linux Kernel — versions 3.1
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2011/08/19/5 (mailing-list, Exploit, Patch, Mailing List, Third Party Advisory)
- www.pre-cert.de/advisories/PRE-SA-2011-06.txt (Exploit, Third Party Advisory)
- www.securityfocus.com/bid/49256 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2011/08/19/1 (mailing-list, Exploit, Patch, Mailing List, Third Party Advisory)
- www.securityfocus.com/archive/1/519387/100/0/threaded (mailing-list, Exploit, VDB Entry, Third Party Advisory)
- git.kernel.org/
- exchange.xforce.ibmcloud.com/vulnerabilities/69343 (VDB Entry, Third Party Advisory, vdb-entry)
- securityreason.com/securityalert/8360 (Exploit, Third Party Advisory, third-party-advisory)
- www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3 (Broken Link)