CVE-2015-4176

LOW

Description

fs/namespace.c in the Linux kernel before 4.0.2 does not properly support mount connectivity, which allows local users to read arbitrary files by leveraging user-namespace root access for deletion of a file or directory.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e0c9c0afd2fc958ffa34b697972721d81df8a56f

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.2

http://www.openwall.com/lists/oss-security/2015/06/04/5

https://bugzilla.redhat.com/show_bug.cgi?id=1249442

https://github.com/torvalds/linux/commit/e0c9c0afd2fc958ffa34b697972721d81df8a56f

Details

Source: MITRE

Published: 2016-05-02

Updated: 2016-05-05

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: (AV:L/AC:L/Au:N/C:N/I:P/A:N)

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

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