PT-2016-7647 · Linux+5 · Linux Kernel+5

Vlad Tsyrklevich · Published 2016-11-27 · Updated 2023-01-17 · CVE-2016-9083

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 4.8.11

Description The issue allows local users to bypass integer overflow checks, potentially causing a denial of service (memory corruption) or having unspecified other impact. This is achieved by leveraging access to a vfio PCI device file for a VFIO DEVICE SET IRQS ioctl call, which is described as a state machine confusion bug.

Recommendations For Linux kernel versions through 4.8.11, update to a version later than 4.8.11 to resolve the issue. As a temporary workaround, consider restricting access to vfio PCI device files to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Integer Overflow

Weakness Enumeration

CWE-119

CWE-190

Related Identifiers

ALT-PU-2017-1050

ALT-PU-2017-1330

CESA-2017_0386

CVE-2016-9083

MGASA-2017-0136

MGASA-2017-0147

MGASA-2017-0148

OPENSUSE-SU-2016_3050-1

OPENSUSE-SU-2016_3058-1

RHSA-2017:0386

RHSA-2017:0387

RHSA-2017_0386

RHSA-2017_0387

SUSE-SU-2017:0181-1

SUSE-SU-2017:0407-1

SUSE-SU-2017:0464-1

SUSE-SU-2017:0471-1

USN-3312-1

USN-3312-2

USN-3361-1

USN-3422-1

USN-3422-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 396

• https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a · Patch
• https://ubuntu.com/security/notices/USN-3422-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-1000251 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-0386-1.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-0605 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7889 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3361-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7917 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2017-0387.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0407-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-9083 · Security Note
• https://ubuntu.com/security/CVE-2016-9604 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-5546 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0181-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-1350 · Vendor Advisory