What’s Vulnerable › Vulnerabilities

CVE-2016-9756

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-12-28 · updated 2026-06-17
• Weakness: CWE-200

Description

arch/x86/kvm/emulate.c in the Linux kernel before 4.8.12 does not properly initialize Code Segment (CS) in certain error cases, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.

Affected products

• Linux kernel: through 4.8.11

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2117d5398c81554fbf803f5fd1dc55eb78216c0c
• http://lists.opensuse.org/opensuse-security-announce/2017-01/msg00000.html
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12
• http://www.openwall.com/lists/oss-security/2016/12/01/1
• http://www.securityfocus.com/bid/94615
• https://bugzilla.redhat.com/show_bug.cgi?id=1400468
• https://github.com/torvalds/linux/commit/2117d5398c81554fbf803f5fd1dc55eb78216c0c
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2117d5398c81554fbf803f5fd1dc55eb78216c0c
• http://lists.opensuse.org/opensuse-security-announce/2017-01/msg00000.html
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12
• http://www.openwall.com/lists/oss-security/2016/12/01/1
• http://www.securityfocus.com/bid/94615

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