VulnerabilityModified
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…
MEDIUM 4.9EPSS 0.51%
Does this matter?
Lower severity and a low EPSS score (0.51%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 4.9 MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 0.51% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2
- http://securityreason.com/securityalert/8360Exploit, Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3Broken Link
- http://www.openwall.com/lists/oss-security/2011/08/19/1Exploit, Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/08/19/5Exploit, Mailing List, Patch, Third Party Advisory
- http://www.pre-cert.de/advisories/PRE-SA-2011-06.txtExploit, Third Party Advisory
- http://www.securityfocus.com/archive/1/519387/100/0/threadedExploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/49256Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69343Third Party Advisory, VDB Entry
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2
- http://securityreason.com/securityalert/8360Exploit, Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3Broken Link
- http://www.openwall.com/lists/oss-security/2011/08/19/1Exploit, Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/08/19/5Exploit, Mailing List, Patch, Third Party Advisory
- http://www.pre-cert.de/advisories/PRE-SA-2011-06.txtExploit, Third Party Advisory
- http://www.securityfocus.com/archive/1/519387/100/0/threadedExploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/49256Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69343Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.