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Mandriva Linux Security Advisory : kernel (MDVSA-2008:044)
high Nessus Plugin ID 36924
Synopsis
The remote Mandriva Linux host is missing one or more security updates.Description
The wait_task_stopped function in the Linux kernel before 2.6.23.8 checks a TASK_TRACED bit instead of an exit_state value, which allows local users to cause a denial of service (machine crash) via unspecified vectors. NOTE: some of these details are obtained from third-party information. (CVE-2007-5500)The tcp_sacktag_write_queue function in the Linux kernel 2.6.21 through 2.6.23.7 allowed remote attackers to cause a denial of service (crash) via crafted ACK responses that trigger a NULL pointer dereference (CVE-2007-5501).
The do_corefump function in fs/exec.c in the Linux kernel prior to 2.6.24-rc3 did not change the UID of a core dump file if it exists before a root process creates a core dump in the same location, which could possibly allow local users to obtain sensitive information (CVE-2007-6206).
VFS in the Linux kernel before 2.6.22.16 performed tests of access mode by using the flag variable instead of the acc_mode variable, which could possibly allow local users to bypass intended permissions and remove directories (CVE-2008-0001).
The Linux kernel prior to 2.6.22.17, when using certain drivers that register a fault handler that does not perform range checks, allowed local users to access kernel memory via an out-of-range offset (CVE-2008-0007).
A flaw in the vmsplice system call did not properly verify address arguments passed by user-space processes, which allowed local attackers to overwrite arbitrary kernel memory and gain root privileges (CVE-2008-0600).
Mandriva urges all users to upgrade to these new kernels immediately as the CVE-2008-0600 flaw is being actively exploited. This issue only affects 2.6.17 and newer Linux kernels, so neither Corporate 3.0 nor Corporate 4.0 are affected.
Additionally, this kernel updates the version from 2.6.22.12 to 2.6.22.18 and fixes numerous other bugs, including :
- fix freeze when ejecting a cm40x0 PCMCIA card
- fix crash on unloading netrom
- fixes alsa-related sound issues on Dell XPS M1210 and M1330 models
- the HZ value was increased on the laptop kernel to increase interactivity and reduce latency
- netfilter ipset, psd, and ifwlog support was re-enabled
- unionfs was reverted to a working 1.4 branch that is less buggy
To update your kernel, please follow the directions located at :
http://www.mandriva.com/en/security/kernelupdate
Solution
Update the affected packages.Plugin Details
Severity: High
ID: 36924
File Name: mandriva_MDVSA-2008-044.nasl
Version: 1.24
Type: local
Family: Mandriva Local Security Checks
Published: 4/23/2009
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.9
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.1
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Vulnerability Information
CPE: p-cpe:/a:mandriva:linux:kernel-laptop-devel-latest, p-cpe:/a:mandriva:linux:kernel-laptop-latest, p-cpe:/a:mandriva:linux:kernel-server-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-server-devel-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-server-devel-latest, p-cpe:/a:mandriva:linux:kernel-server-latest, p-cpe:/a:mandriva:linux:kernel-source-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-source-latest, cpe:/o:mandriva:linux:2008.0, p-cpe:/a:mandriva:linux:kernel-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-desktop-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-desktop-devel-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-desktop-devel-latest, p-cpe:/a:mandriva:linux:kernel-desktop-latest, p-cpe:/a:mandriva:linux:kernel-desktop586-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-desktop586-devel-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-desktop586-devel-latest, p-cpe:/a:mandriva:linux:kernel-desktop586-latest, p-cpe:/a:mandriva:linux:kernel-doc, p-cpe:/a:mandriva:linux:kernel-laptop-2.6.22.18-1mdv, p-cpe:/a:mandriva:linux:kernel-laptop-devel-2.6.22.18-1mdv
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 2/12/2008
Exploitable With
CANVAS (CANVAS)
Core Impact
Reference Information
CVE: CVE-2007-5500, CVE-2007-5501, CVE-2007-6206, CVE-2008-0001, CVE-2008-0007, CVE-2008-0600