medium5.5Public exploit code
CVE-2017-9150
The do_check function in kernel/bpf/verifier.c in the Linux kernel before 4.11.1 does not make the allow_ptr_leaks value available for restricting the output o…
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Linux Kernel 4.11 - eBPF Verifier Log Leaks Lower Half of map Pointer2017-05-22 · dos · linux · Verified
Impact
The do_check function in kernel/bpf/verifier.c in the Linux kernel before 4.11.1 does not make the allow_ptr_leaks value available for restricting the output of the print_bpf_insn function, which allows local users to obtain sensitive address information via crafted bpf system calls.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | through 4.10.9 |
Weakness classification
References
- NVD record
- CVE.org record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d0e57697f162da4aa218b5feafe614fb666db07
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.1
- http://www.securityfocus.com/bid/98635
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1251
- https://github.com/torvalds/linux/commit/0d0e57697f162da4aa218b5feafe614fb666db07
- https://source.android.com/security/bulletin/2017-09-01
- https://www.exploit-db.com/exploits/42048/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d0e57697f162da4aa218b5feafe614fb666db07
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.1
- http://www.securityfocus.com/bid/98635
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1251
- https://github.com/torvalds/linux/commit/0d0e57697f162da4aa218b5feafe614fb666db07
- https://source.android.com/security/bulletin/2017-09-01
- https://www.exploit-db.com/exploits/42048/