CVE-2017-5550

low-risk
Published 2017-02-06

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.

Do I need to act?

-
0.08% 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 (12)

Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9dc6f...
Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5
Mailing List http://www.openwall.com/lists/oss-security/2017/01/21/3
Third Party Advisory http://www.securityfocus.com/bid/95716
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1416116
Issue Tracking https://github.com/torvalds/linux/commit/b9dc6f65bc5e232d1c05fe34b5daadc7e8bbf1f...
Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9dc6f...
Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5
Mailing List http://www.openwall.com/lists/oss-security/2017/01/21/3
Third Party Advisory http://www.securityfocus.com/bid/95716
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1416116
Issue Tracking https://github.com/torvalds/linux/commit/b9dc6f65bc5e232d1c05fe34b5daadc7e8bbf1f...
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal