Vulnerability Details : CVE-2017-5550
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.
Vulnerability category: Information leak
Exploit prediction scoring system (EPSS) score for CVE-2017-5550
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-5550
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
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-2017-5550
-
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-2017-5550
-
https://github.com/torvalds/linux/commit/b9dc6f65bc5e232d1c05fe34b5daadc7e8bbf1fb
fix a fencepost error in pipe_advance() · torvalds/linux@b9dc6f6 · GitHubIssue Tracking;Patch;Third Party Advisory
-
http://www.securityfocus.com/bid/95716
Linux Kernel CVE-2017-5550 Local Information Disclosure VulnerabilityThird Party Advisory;VDB Entry
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https://bugzilla.redhat.com/show_bug.cgi?id=1416116
1416116 – (CVE-2017-5550) CVE-2017-5550 kernel: Information leak due to fencepost error in pipe_advance()Issue Tracking;Patch
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http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5
Release Notes;Vendor Advisory
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9dc6f65bc5e232d1c05fe34b5daadc7e8bbf1fb
kernel/git/torvalds/linux.git - Linux kernel source treeIssue Tracking;Patch;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2017/01/21/3
oss-security - Re: CVE REQUEST: linux kernel: process with pgid zero able to crash kernelMailing List;Patch;Third Party Advisory
Products affected by CVE-2017-5550
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*