Vulnerability Monitor

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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

2011-08-29T17:55:00.830

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.9 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

6.9

Weaknesses

Type: Primary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 3.1	Yes
Operating System	linux	linux_kernel	3.1	Yes
Operating System	linux	linux_kernel	3.1	Yes
Operating System	linux	linux_kernel	3.1	Yes

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2 ([email protected])
http://securityreason.com/securityalert/8360 Exploit, Third Party Advisory ([email protected])
http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3 Broken Link ([email protected])
http://www.openwall.com/lists/oss-security/2011/08/19/1 Exploit, Mailing List, Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2011/08/19/5 Exploit, Mailing List, Patch, Third Party Advisory ([email protected])
http://www.pre-cert.de/advisories/PRE-SA-2011-06.txt Exploit, Third Party Advisory ([email protected])
http://www.securityfocus.com/archive/1/519387/100/0/threaded Exploit, Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/bid/49256 Third Party Advisory, VDB Entry ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/69343 Third Party Advisory, VDB Entry ([email protected])
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2 (af854a3a-2127-422b-91ae-364da2661108)
http://securityreason.com/securityalert/8360 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/08/19/1 Exploit, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/08/19/5 Exploit, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.pre-cert.de/advisories/PRE-SA-2011-06.txt Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/519387/100/0/threaded Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/49256 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/69343 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)