01 Record
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
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.50% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 42.9% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-08-29 17:00Z15 YR AGO
- Last updated
- 2024-08-06 23:15Z2 YR AGO
- Reserved
- 2011-07-27
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.1
- Document digest
- 327960be4a7d8e8505af4fcab2f9713f37e28ec52bab39c17587da9d73b5a06d
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.openwall.com[oss-security] 20110819 Re: CVE request: Linux: ZERO_SIZE_PTR dereference for long symlinks in Be FShttp://www.openwall.com/lists/oss-security/2011/08/19/5
- www.pre-cert.dehttp://www.pre-cert.de/advisories/PRE-SA-2011-06.txt
- www.securityfocus.com49256http://www.securityfocus.com/bid/49256
- www.openwall.com[oss-security] 20110819 CVE request: Linux: ZERO_SIZE_PTR dereference for long symlinks in Be FShttp://www.openwall.com/lists/oss-security/2011/08/19/1
- www.securityfocus.com20110819 [PRE-SA-2011-06] Linux kernel: ZERO_SIZE_PTR dereference for long symlinks in Be FShttp://www.securityfocus.com/archive/1/519387/100/0/threaded
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2
- exchange.xforce.ibmcloud.comlinux-kernel-be-dos(69343)https://exchange.xforce.ibmcloud.com/vulnerabilities/69343
- securityreason.com8360http://securityreason.com/securityalert/8360
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3