CVE-2016-9644 (GCVE-0-2016-9644)

Vulnerability from cvelistv5 – Published: 2016-11-28 03:01 – Updated: 2024-08-06 02:59
VLAI
Summary
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application. NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
URL Tags
http://www.ubuntu.com/usn/USN-3146-2 vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/94545 vdb-entryx_refsource_BID
http://www.ubuntu.com/usn/USN-3146-1 vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2016/11/07/4 mailing-listx_refsource_MLIST
https://lwn.net/Articles/705220/ x_refsource_CONFIRM
Date Public
2016-11-01 00:00
Show details on NVD website
To clipboard 

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}



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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
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