CVE-2017-14954

low-risk
Published 2017-10-02

The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 accesses rusage data structures in unintended cases, which allows local users to obtain sensitive information, and bypass the KASLR protection mechanism, via a crafted system call.

Do I need to act?

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0.97% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (10)

Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6c8550...
Issue Tracking https://github.com/torvalds/linux/commit/6c85501f2fabcfc4fc6ed976543d252c4eaf4be...
Third Party Advisory https://grsecurity.net/~spender/exploits/wait_for_kaslr_to_be_effective.c
Third Party Advisory https://twitter.com/_argp/status/914021130712870912
Third Party Advisory https://twitter.com/grsecurity/status/914079864478666753
Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6c8550...
Issue Tracking https://github.com/torvalds/linux/commit/6c85501f2fabcfc4fc6ed976543d252c4eaf4be...
Third Party Advisory https://grsecurity.net/~spender/exploits/wait_for_kaslr_to_be_effective.c
Third Party Advisory https://twitter.com/_argp/status/914021130712870912
Third Party Advisory https://twitter.com/grsecurity/status/914079864478666753
26
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal