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CVE-2007-3642

Status Candidate

Overview

The decode_choice function in net/netfilter/nf_conntrack_h323_asn1.c in the Linux kernel before 2.6.20.15, 2.6.21.x before 2.6.21.6, and before 2.6.22 allows remote attackers to cause a denial of service (crash) via an encoded, out-of-range index value for a choice field, which triggers a NULL pointer dereference.

Related Files

Mandriva Linux Security Advisory 2007.195
Posted Oct 16, 2007
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory - A stack-based buffer overflow in the random number generator could allow local root users to cause a denial of service or gain privileges by setting the default wakeup threshold to a value greater than the output pool size. The lcd_write function did not limit the amount of memory used by a caller, which allows local users to cause a denial of service (memory consumption). The decode_choice function allowed remote attackers to cause a denial of service (crash) via an encoded out-of-range index value for a choice field which triggered a NULL pointer dereference. The Linux kernel allowed local users to send arbitrary signals to a child process that is running at higher privileges by causing a setuid-root parent process to die which delivered an attacker-controlled parent process death signal (PR_SET_PDEATHSIG). The aac_cfg_openm and aac_compat_ioctl functions in the SCSI layer ioctl patch in aacraid did not check permissions for ioctls, which might allow local users to cause a denial of service or gain privileges. The IA32 system call emulation functionality, when running on the x86_64 architecture, did not zero extend the eax register after the 32bit entry path to ptrace is used, which could allow local users to gain privileges by triggering an out-of-bounds access to the system call table using the %RAX register.

tags | advisory, remote, denial of service, overflow, arbitrary, kernel, local, root
systems | linux, mandriva
advisories | CVE-2007-3105, CVE-2007-3513, CVE-2007-3642, CVE-2007-3848, CVE-2007-4308, CVE-2007-4573
MD5 | 5a12cf6638c61249c10bb2a042c483b3
Ubuntu Security Notice 510-1
Posted Sep 1, 2007
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 510-1 - Over a dozen vulnerabilities have been patched for the Linux 2.6 kernel.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2007-2525, CVE-2007-2875, CVE-2007-2876, CVE-2007-2878, CVE-2007-3104, CVE-2007-3105, CVE-2007-3513, CVE-2007-3642, CVE-2007-3843, CVE-2007-3848, CVE-2007-3851, CVE-2007-4308
MD5 | ca3d6ef3b5512c4bf96630a40cd450f2
Debian Linux Security Advisory 1356-1
Posted Aug 16, 2007
Authored by Debian | Site debian.org

Debian Security Advisory 1356-1 - Several local and remote vulnerabilities have been discovered in the Linux 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-2007-1353, CVE-2007-2172, CVE-2007-2453, CVE-2007-2525, CVE-2007-2876, CVE-2007-3513, CVE-2007-3642, CVE-2007-3848, CVE-2007-3851
MD5 | cf012807510b8261551f02c3597097d2
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