- Issued:
- 2011-07-20
- Updated:
- 2011-07-20
RHSA-2011:1083 - Moderate: fuse security update
Synopsis
Moderate: fuse security update
Type/Severity
Security Advisory Moderate
Topic
Updated fuse packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
Description
FUSE (Filesystem in Userspace) can implement a fully functional file system in a user-space program. These packages provide the mount utility, fusermount, the tool used to mount FUSE file systems.
Multiple flaws were found in the way fusermount handled the mounting and unmounting of directories when symbolic links were present. A local user in the fuse group could use these flaws to unmount file systems, which they would otherwise not be able to unmount and that were not mounted using FUSE, via a symbolic link attack. (CVE-2010-3879, CVE-2011-0541, CVE-2011-0542, CVE-2011-0543)
Note: The util-linux-ng RHBA-2011:0699 update must also be installed to fully correct the above flaws.
All users should upgrade to these updated packages, which contain backported patches to correct these issues.
Solution
Before applying this update, make sure all previously-released errata relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.https://access.redhat.com/kb/docs/DOC-11259
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Virtual Storage Appliance (from RHUI) | 6.1 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 6.1 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 6.1 | i386 |
| Red Hat Enterprise Linux for Scientific Computing | 6 | x86_64 |
| Red Hat Enterprise Linux for Power, big endian | 6 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 6.1 | ppc64 |
| Red Hat Enterprise Linux for IBM z Systems | 6 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 6.1 | s390x |
| Red Hat Enterprise Linux Workstation | 6 | x86_64 |
| Red Hat Enterprise Linux Workstation | 6 | i386 |
| Red Hat Enterprise Linux Server | 6 | x86_64 |
| Red Hat Enterprise Linux Server | 6 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 6 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 6.1 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 6.1 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Desktop | 6 | x86_64 |
| Red Hat Enterprise Linux Desktop | 6 | i386 |
Updated Packages
- fuse-devel-2.8.3-3.el6_1.ppc.rpm
- fuse-debuginfo-2.8.3-3.el6_1.s390.rpm
- fuse-devel-2.8.3-3.el6_1.s390.rpm
- fuse-debuginfo-2.8.3-3.el6_1.ppc.rpm
- fuse-devel-2.8.3-3.el6_1.i686.rpm
- fuse-libs-2.8.3-3.el6_1.s390.rpm
- fuse-libs-2.8.3-3.el6_1.s390x.rpm
- fuse-2.8.3-3.el6_1.s390x.rpm
- fuse-2.8.3-3.el6_1.i686.rpm
- fuse-debuginfo-2.8.3-3.el6_1.x86_64.rpm
- fuse-2.8.3-3.el6_1.x86_64.rpm
- fuse-libs-2.8.3-3.el6_1.ppc.rpm
- fuse-2.8.3-3.el6_1.ppc64.rpm
- fuse-debuginfo-2.8.3-3.el6_1.s390x.rpm
- fuse-devel-2.8.3-3.el6_1.ppc64.rpm
- fuse-devel-2.8.3-3.el6_1.s390x.rpm
- fuse-libs-2.8.3-3.el6_1.ppc64.rpm
- fuse-debuginfo-2.8.3-3.el6_1.ppc64.rpm
- fuse-devel-2.8.3-3.el6_1.x86_64.rpm
- fuse-libs-2.8.3-3.el6_1.i686.rpm
- fuse-2.8.3-3.el6_1.src.rpm
- fuse-debuginfo-2.8.3-3.el6_1.i686.rpm
- fuse-libs-2.8.3-3.el6_1.x86_64.rpm
Fixes
CVEs
References
- https://access.redhat.com/security/updates/classification/#moderate
- https://rhn.redhat.com/errata/RHBA-2011-0699.html
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.