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.
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5
http://www.openwall.com/lists/oss-security/2017/01/21/3
http://www.securityfocus.com/bid/95716
https://bugzilla.redhat.com/show_bug.cgi?id=1416116
https://github.com/torvalds/linux/commit/b9dc6f65bc5e232d1c05fe34b5daadc7e8bbf1fb
Source: MITRE
Published: 2017-02-06
Updated: 2017-02-09
Type: CWE-200
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM
OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.9.4 (inclusive)
ID | Name | Product | Family | Severity |
---|---|---|---|---|
124800 | EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1476) | Nessus | Huawei Local Security Checks | high |
101929 | Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3361-1) | Nessus | Ubuntu Local Security Checks | critical |