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CVE-2017-6346

Date: March 1, 2017

Race condition in net/packet/af_packet.c in the Linux kernel before 4.9.13 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that makes PACKET_FANOUT setsockopt system calls.

Language: C

Severity Score

Related Resources (10)

https://people.canonical.com/~ubuntu-security/cve/CVE-2017-6346
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d199fab63c11998a602205f7ee7ff7c05c97164b
https://nvd.nist.gov/vuln/detail/CVE-2017-6346
http://www.securityfocus.com/bid/96508
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.13
http://www.openwall.com/lists/oss-security/2017/02/28/6
http://www.debian.org/security/2017/dsa-3804
https://source.android.com/security/bulletin/2017-09-01
https://github.com/torvalds/linux/commit/d199fab63c11998a602205f7ee7ff7c05c97164b
https://www.mend.io/vulnerability-database/CVE-2017-6346

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

Use After Free

CWE-416

CVSS v3.1

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

CVSS v2

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

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