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CVE-2011-1076

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Date: October 4, 2011

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.

Language: C

Severity Score

Related Resources (7)

http://openwall.com/lists/oss-security/2011/03/04/13
https://nvd.nist.gov/vuln/detail/CVE-2011-1076
https://people.canonical.com/~ubuntu-security/cve/CVE-2011-1076
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1362fa078dae16776cd439791c6605b224ea6171
http://securitytracker.com/id?1025162
https://www.mend.io/vulnerability-database/CVE-2011-1076

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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