high7.8
CVE-2016-9644
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 …
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | Versions 4.4.22, 4.4.23, 4.4.24, 4.4.25, 4.4.26, 4.4.27 |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.openwall.com/lists/oss-security/2016/11/07/4
- http://www.securityfocus.com/bid/94545
- http://www.ubuntu.com/usn/USN-3146-1
- http://www.ubuntu.com/usn/USN-3146-2
- https://lwn.net/Articles/705220/
- http://www.openwall.com/lists/oss-security/2016/11/07/4
- http://www.securityfocus.com/bid/94545
- http://www.ubuntu.com/usn/USN-3146-1
- http://www.ubuntu.com/usn/USN-3146-2
- https://lwn.net/Articles/705220/