CVE-2017-5550

Description

Off-by-one error in the pipe_advance function in lib/iov_iter.c in the Linux kernel before 4.9.5 allows local users to obtain sensitive information from uninitialized heap-memory locations in opportunistic circumstances by reading from a pipe after an incorrect buffer-release decision.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2017/01/21/3 mailing list third party advisory patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9dc6f65bc5e232d1c05fe34b5daadc7e8bbf1fb issue tracking third party advisory patch
https://bugzilla.redhat.com/show_bug.cgi?id=1416116 issue tracking patch
http://www.securityfocus.com/bid/95716 vdb entry third party advisory
https://github.com/torvalds/linux/commit/b9dc6f65bc5e232d1c05fe34b5daadc7e8bbf1fb issue tracking third party advisory patch
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5 release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-5550?
CVE-2017-5550 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5550?
To fix CVE-2017-5550, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5550 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-5550 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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