high7.8Public exploit code
CVE-2017-16995
The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possi…
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Linux - BPF Sign Extension Local Privilege Escalation (Metasploit)2018-07-19 · local · linux · Verified
- Linux Kernel < 4.13.9 (Ubuntu 16.04 / Fedora 27) - Local Privilege Escalation2018-07-10 · local · linux · Verified
- Linux Kernel < 4.4.0-116 (Ubuntu 16.04.4) - Local Privilege Escalation2018-03-16 · local · linux
Impact
The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 4.9 before 4.9.72 from 4.10 before 4.14.9 |
| Debian | Debian Linux | Version 9.0 |
| Canonical | Ubuntu Linux | Versions 14.04, 16.04 |
Weakness classification
References
- NVD record
- CVE.org record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6f
- http://openwall.com/lists/oss-security/2017/12/21/2
- http://www.securityfocus.com/bid/102288
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1454
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=a6132276ab5dcc38b3299082efeb25b948263adb
- https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6f
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3633-1/
- https://usn.ubuntu.com/usn/usn-3523-2/
- https://www.debian.org/security/2017/dsa-4073
- https://www.exploit-db.com/exploits/44298/
- https://www.exploit-db.com/exploits/45010/
- https://www.exploit-db.com/exploits/45058/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6f
- http://openwall.com/lists/oss-security/2017/12/21/2
- http://www.securityfocus.com/bid/102288
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1454
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=a6132276ab5dcc38b3299082efeb25b948263adb
- https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6f
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3633-1/
- https://usn.ubuntu.com/usn/usn-3523-2/
- https://www.debian.org/security/2017/dsa-4073