Vulnerability Details : CVE-2011-4110
The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and "updating a negative key into a fully instantiated key."
Vulnerability category: Memory CorruptionDenial of service
Threat overview for CVE-2011-4110
Top countries where our scanners detected CVE-2011-4110
Top open port discovered on systems with this issue
80
IPs affected by CVE-2011-4110 20,789
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2011-4110
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2011-4110
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST |
CWE ids for CVE-2011-4110
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-4110
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https://bugzilla.redhat.com/show_bug.cgi?id=751297
751297 – (CVE-2011-4110) CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key typePatch
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http://www.securityfocus.com/bid/50755
Linux Kernel CVE-2011-4110 NULL Pointer Dereference Denial of Service Vulnerability
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http://www.openwall.com/lists/oss-security/2011/11/22/6
oss-security - Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type
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http://www.ubuntu.com/usn/USN-1324-1
USN-1324-1: Linux kernel (EC2) vulnerabilities | Ubuntu security notices
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https://lkml.org/lkml/2011/11/15/363
LKML: David Howells: [PATCH] KEYS: Fix a NULL pointer deref in the user-defined key typeExploit
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http://www.ubuntu.com/usn/USN-1344-1
USN-1344-1: Linux kernel vulnerabilities | Ubuntu security notices
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http://www.openwall.com/lists/oss-security/2011/11/21/19
oss-security - CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type
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http://www.ubuntu.com/usn/USN-1328-1
USN-1328-1: Linux kernel (Marvell DOVE) vulnerabilities | Ubuntu security notices
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http://www.openwall.com/lists/oss-security/2011/11/22/5
oss-security - Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type
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http://marc.info/?l=bugtraq&m=139447903326211&w=2
'[security bulletin] HPSBGN02970 rev.1 - HP Rapid Deployment Pack (RDP) or HP Insight Control Server ' - MARC
Products affected by CVE-2011-4110
- cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:*