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CVE-2007-0005

Status Candidate

Overview

Multiple buffer overflows in the (1) read and (2) write handlers in the Omnikey CardMan 4040 driver in the Linux kernel before 2.6.21-rc3 allow local users to gain privileges.

Related Files

Ubuntu Security Notice 489-1
Posted Jul 20, 2007
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 489-1 - A ridiculous amount of vulnerabilities in the Linux 2.6 kernel have been fixed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2006-4623, CVE-2006-7203, CVE-2007-0005, CVE-2007-1000, CVE-2007-1353, CVE-2007-1861, CVE-2007-2453, CVE-2007-2525, CVE-2007-2875, CVE-2007-2876, CVE-2007-2878, CVE-2007-3380, CVE-2007-3513
MD5 | 44760b5f718175c47aece71c76f178d5
Ubuntu Security Notice 486-1
Posted Jul 19, 2007
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 486-1 - The compat_sys_mount function allowed local users to cause a denial of service when mounting a smbfs filesystem in compatibility mode. The Omnikey CardMan 4040 driver (cm4040_cs) did not limit the size of buffers passed to read() and write(). A local attacker could exploit this to execute arbitrary code with kernel privileges. Due to a variable handling flaw in the ipv6_getsockopt_sticky() function a local attacker could exploit the getsockopt() calls to read arbitrary kernel memory. This could disclose sensitive data. Ilja van Sprundel discovered that Bluetooth setsockopt calls could leak kernel memory contents via an uninitialized stack buffer. A local attacker could exploit this flaw to view sensitive kernel information. A flaw was discovered in the handling of netlink messages. Local attackers could cause infinite recursion leading to a denial of service. A flaw was discovered in the IPv6 stack's handling of type 0 route headers. By sending a specially crafted IPv6 packet, a remote attacker could cause a denial of service between two IPv6 hosts. The random number generator was hashing a subset of the available entropy, leading to slightly less random numbers. Additionally, systems without an entropy source would be seeded with the same inputs at boot time, leading to a repeatable series of random numbers. A flaw was discovered in the PPP over Ethernet implementation. Local attackers could manipulate ioctls and cause kernel memory consumption leading to a denial of service. An integer underflow was discovered in the cpuset filesystem. If mounted, local attackers could obtain kernel memory using large file offsets while reading the tasks file. This could disclose sensitive data. Vilmos Nebehaj discovered that the SCTP netfilter code did not correctly validate certain states. A remote attacker could send a specially crafted packet causing a denial of service. Luca Tettamanti discovered a flaw in the VFAT compat ioctls on 64-bit systems. A local attacker could corrupt a kernel_dirent struct and cause a denial of service.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2006-7203, CVE-2007-0005, CVE-2007-1000, CVE-2007-1353, CVE-2007-1861, CVE-2007-2242, CVE-2007-2453, CVE-2007-2525, CVE-2007-2875, CVE-2007-2876, CVE-2007-2878
MD5 | d1fbda39809930977b9a5d12439c40b2
Debian Linux Security Advisory 1286-1
Posted May 3, 2007
Authored by Debian | Site debian.org

Debian Security Advisory 1286-1 - Several local and remote vulnerabilities have been discovered in the Linux 2.6 kernel that may lead to a denial of service or the execution of arbitrary code.

tags | advisory, remote, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, debian
advisories | CVE-2007-0005, CVE-2007-0958, CVE-2007-1357, CVE-2007-1592
MD5 | ff6e8f6c319b5a3037f40b63da55ff70
Mandriva Linux Security Advisory 2007.078
Posted Apr 5, 2007
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory - Quite a few kernel related vulnerabilities have been fixed for the Linux 2.6 series.

tags | advisory, kernel, vulnerability
systems | linux, mandriva
advisories | CVE-2006-6056, CVE-2007-0005, CVE-2007-0772, CVE-2007-0958, CVE-2007-1000, CVE-2007-1217, CVE-2007-1388, CVE-2007-1592
MD5 | 3afceaa1b967983bc076986ed7c5b2d9
csa-driver.txt
Posted Mar 13, 2007
Authored by Daniel Roethlisberger | Site csnc.ch

COMPASS SECURITY ADVISORY - The Linux drivers for the Omnikey CardMan 4040 smartcard reader contains a buffer overflow vulnerability. Local attackers with direct or indirect write permissions to a cmx device file can execute arbitrary code with kernel privileges or may cause a denial of service condition. Proof of concept exploit included.

tags | exploit, denial of service, overflow, arbitrary, kernel, local, proof of concept
systems | linux
advisories | CVE-2007-0005
MD5 | 7dca159ebdcc3579a8aef062fa5d499b
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