CVE-2013-1957

medium

Description

The clone_mnt function in fs/namespace.c in the Linux kernel before 3.8.6 does not properly restrict changes to the MNT_READONLY flag, which allows local users to bypass an intended read-only property of a filesystem by leveraging a separate mount namespace.

References

https://github.com/torvalds/linux/commit/132c94e31b8bca8ea921f9f96a57d684fa4ae0a9

http://www.openwall.com/lists/oss-security/2013/04/16/11

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=132c94e31b8bca8ea921f9f96a57d684fa4ae0a9

Details

Source: Mitre, NVD

Published: 2013-04-24

Updated: 2025-04-11

Risk Information

CVSS v2

Base Score: 4.7

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00059