CVE-2010-0727 Denial of service in n/a
Local users can crash the system by manipulating file permissions on GFS/GFS2 filesystems, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2010-0727?
CVE-2010-0727 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 16 Mar 2010. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The gfs2_lock function in the Linux kernel before 2.6.34-rc1-next-20100312, and the gfs_lock function in the Linux kernel on Red Hat Enterprise Linux (RHEL) 5 and 6, does not properly remove POSIX locks on files that are setgid without group-execute permission, which allows local users to cause a denial of service (BUG and system crash) by locking a file on a (1) GFS or (2) GFS2 filesystem, and then changing this file's permissions.
Weakness: CWE-399
Which versions are affected by CVE-2010-0727?
It affects 3 products.
Linux distribution packages (23)
gfs-kmod Red Hat:rhel_cluster_storage:5 | All versions | 0:0.1.34-12.el5 |
gfs-kmod-debuginfo Red Hat:rhel_cluster_storage:5 | All versions | 0:0.1.34-12.el5 |
kmod-gfs Red Hat:rhel_cluster_storage:5 | All versions | 0:0.1.34-12.el5 |
kmod-gfs-PAE Red Hat:rhel_cluster_storage:5 | All versions | 0:0.1.34-12.el5 |
kmod-gfs-xen Red Hat:rhel_cluster_storage:5 | All versions | 0:0.1.34-12.el5 |
gfs-kmod Red Hat:rhel_cluster_storage:5:update4:server | All versions | 0:0.1.34-2.el5_4.3 |
gfs-kmod-debuginfo Red Hat:rhel_cluster_storage:5:update4:server | All versions | 0:0.1.34-2.el5_4.3 |
kmod-gfs Red Hat:rhel_cluster_storage:5:update4:server | All versions | 0:0.1.34-2.el5_4.3 |
kmod-gfs-PAE Red Hat:rhel_cluster_storage:5:update4:server | All versions | 0:0.1.34-2.el5_4.3 |
kmod-gfs-xen Red Hat:rhel_cluster_storage:5:update4:server | All versions | 0:0.1.34-2.el5_4.3 |
GFS Red Hat:rhel_global_file_system:3 | All versions | 0:6.0.2.36-13 |
GFS-debuginfo Red Hat:rhel_global_file_system:3 | All versions | 0:6.0.2.36-13 |
GFS-devel Red Hat:rhel_global_file_system:3 | All versions | 0:6.0.2.36-13 |
GFS-modules Red Hat:rhel_global_file_system:3 | All versions | 0:6.0.2.36-13 |
GFS-modules-hugemem Red Hat:rhel_global_file_system:3 | All versions | 0:6.0.2.36-13 |
GFS-modules-smp Red Hat:rhel_global_file_system:3 | All versions | 0:6.0.2.36-13 |
GFS-kernel Red Hat:rhel_global_file_system:4 | All versions | 0:2.6.9-85.2.el4_8.10 |
GFS-kernel-debuginfo Red Hat:rhel_global_file_system:4 | All versions | 0:2.6.9-85.2.el4_8.10 |
GFS-kernel-hugemem Red Hat:rhel_global_file_system:4 | All versions | 0:2.6.9-85.2.el4_8.10 |
GFS-kernel-largesmp Red Hat:rhel_global_file_system:4 | All versions | 0:2.6.9-85.2.el4_8.10 |
GFS-kernel-smp Red Hat:rhel_global_file_system:4 | All versions | 0:2.6.9-85.2.el4_8.10 |
GFS-kernel-xenU Red Hat:rhel_global_file_system:4 | All versions | 0:2.6.9-85.2.el4_8.10 |
GFS-kernheaders Red Hat:rhel_global_file_system:4 | All versions | 0:2.6.9-85.2.el4_8.10 |
Products include Debian Debian Linux, Linux kernel, Redhat Enterprise Linux.
How do I fix CVE-2010-0727?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2010-0727 being exploited?
There is no known exploitation of CVE-2010-0727 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as GHSA-xfgm-rcpf-gf3q, RHSA-2010:0291, RHSA-2010:0330, RHSA-2010:0331, RHSA-2010:0521.