CVE-2010-3879
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Description
The CVE Program describes this issue as:
FUSE, possibly 2.8.5 and earlier, allows local users to create mtab entries with arbitrary pathnames, and consequently unmount any filesystem, via a symlink attack on the parent directory of the mountpoint of a FUSE filesystem, a different vulnerability than CVE-2010-0789.
Statement
The Red Hat Security Response Team has rated this issue as having low security impact. On Red Hat Enterprise Linux 5 and 6, a user must be a member of the 'fuse' group in order to use FUSE. Due to the risks associated with fixing this bug on Red Hat Enterprise Linux 5, and because of the group restrictions in place, we currently have no plans to fix this flaw in Red Hat Enterprise Linux 5.
Additional information
- Bugzilla 651183: fuse: unprivileged user can unmount arbitrary locations via symlink attack
- FAQ: Frequently asked questions about CVE-2010-3879
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
| Red Hat | NVD | |
|---|---|---|
CVSS v2 Base Score | 2.6 | 5.8 |
Attack Vector | Local | Network |
Access Complexity | High | Medium |
Authentication | None | None |
Confidentiality Impact | None | None |
Integrity Impact | Partial | Partial |
Availability Impact | Partial | Partial |
CVSS v2 Vector
Red Hat: AV:L/AC:H/Au:N/C:N/I:P/A:P
NVD: AV:N/AC:M/Au:N/C:N/I:P/A:P
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
What can I do if my product is listed as "Will not fix"?
What can I do if my product is listed as "Fix deferred"?
What is a mitigation?
I have a Red Hat product but it is not in the above list, is it affected?
Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?
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