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CVE-2016-9755

Date: December 28, 2016

The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow, out-of-bounds write, and GPF) or possibly have unspecified other impact via a crafted application that makes socket, connect, and writev system calls, related to net/ipv6/netfilter/nf_conntrack_reasm.c and net/ipv6/netfilter/nf_defrag_ipv6_hooks.c.

Language: C

Severity Score

Related Resources (10)

https://groups.google.com/forum/#%21topic/syzkaller/GFbGpX7nTEo
https://github.com/torvalds/linux/commit/9b57da0630c9fd36ed7a20fc0f98dc82cc0777fa
https://bugzilla.redhat.com/show_bug.cgi?id=1400904
https://nvd.nist.gov/vuln/detail/CVE-2016-9755
http://www.securityfocus.com/bid/94626
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b57da0630c9fd36ed7a20fc0f98dc82cc0777fa
https://www.spinics.net/lists/netdev/msg407525.html
http://www.openwall.com/lists/oss-security/2016/12/01/10
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-9755
https://www.mend.io/vulnerability-database/CVE-2016-9755

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

CVSS v3.1

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

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