Vulnerability Details : 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 of the print_bpf_insn function, which allows local users to obtain sensitive address information via crafted bpf system calls.
Vulnerability category: Information leak
Products affected by CVE-2017-9150
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-9150
0.57%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 66 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-9150
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2017-9150
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-9150
-
https://source.android.com/security/bulletin/2017-09-01
Android Security Bulletin—September 2017 | Android Open Source Project
-
http://www.securityfocus.com/bid/98635
Linux Kernel CVE-2017-9150 Local Information Disclosure Vulnerability
-
https://github.com/torvalds/linux/commit/0d0e57697f162da4aa218b5feafe614fb666db07
bpf: don't let ldimm64 leak map addresses on unprivileged · torvalds/linux@0d0e576 · GitHubIssue Tracking;Patch;Third Party Advisory
-
https://www.exploit-db.com/exploits/42048/
Linux Kernel 4.11 - eBPF Verifier Log Leaks Lower Half of map Pointer
-
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d0e57697f162da4aa218b5feafe614fb666db07
kernel/git/torvalds/linux.git - Linux kernel source treeIssue Tracking;Patch;Third Party Advisory
-
https://bugs.chromium.org/p/project-zero/issues/detail?id=1251
1251 - Linux: eBPF verifier log leaks lower half of map pointer - project-zero - MonorailIssue Tracking;Patch;Third Party Advisory
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http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.1
Release Notes;Vendor Advisory
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