Vulnerability Details : CVE-2011-1076
net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a denial of service (NULL pointer dereference and OOPS) by not providing a valid response to a DNS query, as demonstrated by an erroneous grand.centrall.org query, which triggers improper handling of error data within a DNS resolver key.
Vulnerability category: Memory CorruptionDenial of service
Threat overview for CVE-2011-1076
Top countries where our scanners detected CVE-2011-1076
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2011-1076 1,472
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2011-1076
Probability of exploitation activity in the next 30 days: 0.08%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 33 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2011-1076
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST |
CWE ids for CVE-2011-1076
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A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-1076
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http://openwall.com/lists/oss-security/2011/03/04/13
oss-security - CVE-2011-1076 kernel: DNS: Fix a NULL pointer deref when trying to read an error keyExploit;Mailing List;Patch;Third Party Advisory
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1362fa078dae16776cd439791c6605b224ea6171
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http://securitytracker.com/id?1025162
Linux Kernel dns_resolver Key Processing Error Lets Local Users Deny Service - SecurityTrackerThird Party Advisory;VDB Entry
Products affected by CVE-2011-1076
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*