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CVE-2016-9083

Date: November 27, 2016

drivers/vfio/pci/vfio_pci.c in the Linux kernel through 4.8.11 allows local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a "state machine confusion bug."

Language: C

Severity Score

Related Resources (12)

https://nvd.nist.gov/vuln/detail/CVE-2016-9083
https://patchwork.kernel.org/patch/9373631/
http://rhn.redhat.com/errata/RHSA-2017-0387.html
https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a
http://rhn.redhat.com/errata/RHSA-2017-0386.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-9083
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05692d7005a364add85c6e25a6c4447ce08f913a
https://bugzilla.redhat.com/show_bug.cgi?id=1389258
https://access.redhat.com/security/cve/CVE-2016-9083
http://www.openwall.com/lists/oss-security/2016/10/26/11
http://www.securityfocus.com/bid/93929
https://www.mend.io/vulnerability-database/CVE-2016-9083

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Integer Overflow or Wraparound

CWE-190

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): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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