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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA1017] DSA-1017-1 kernel-source-2.6.8 Vulnerability Assessment Details
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[DSA1017] DSA-1017-1 kernel-source-2.6.8 |
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DSA-1017-1 kernel-source-2.6.8 Detailed Explanation for this Vulnerability Assessment 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. The Common Vulnerabilities and Exposures project identifies the following problems: Multiple overflows exist in the io_edgeport driver which might be usable as a denial of service attack vector. Bryan Fulton reported a bounds checking bug in the coda_pioctl function which may permit local users to execute arbitrary code or trigger a denial of service attack. An error in the skb_checksum_help() function from the netfilter framework has been discovered that permits the bypass of packet filter rules or a denial of service attack. Tim Yamin discovered that insufficient input validation in the zisofs driver for compressed ISO file systems permits a denial of service attack through maliciously crafted ISO images. A buffer overflow in the sendmsg() function permits local users to execute arbitrary code. Herbert Xu discovered that the setsockopt() function was not restricted to users/processes with the CAP_NET_ADMIN capability. This permits attackers to manipulate IPSEC policies or initiate a denial of service attack. Al Viro discovered a race condition in the /proc handling of network devices. A (local) attacker could exploit the stale reference after interface shutdown to cause a denial of service or possibly execute code in kernel mode. Jan Blunck discovered that repeated failed reads of /proc/scsi/sg/devices leak memory, which permits a denial of service attack. Tetsuo Handa discovered that the udp_v6_get_port() function from the IPv6 code can be forced into an endless loop, which permits a denial of service attack. Vasiliy Averin discovered that the reference counters from sockfd_put() and fput() can be forced into overlapping, which permits a denial of service attack through a null pointer dereference. Eric Dumazet discovered that the set_mempolicy() system call accepts a negative value for its first argument, which triggers a BUG() assert. This permits a denial of service attack. Harald Welte discovered that if a process issues a USB Request Block (URB) to a device and terminates before the URB completes, a stale pointer would be dereferenced. This could be used to trigger a denial of service attack. Pavel Roskin discovered that the driver for Orinoco wireless cards clears its buffers insufficiently. This could leak sensitive information into user space. Robert Derr discovered that the audit subsystem uses an incorrect function to free memory, which permits a denial of service attack. Rudolf Polzer discovered that the kernel improperly restricts access to the KDSKBSENT ioctl, which can possibly lead to privilege escalation. Doug Chapman discovered that the mq_open syscall can be tricked into decrementing an internal counter twice, which permits a denial of service attack through a kernel panic. Doug Chapman discovered that pass [...] Solution : http://www.debian.org/security/2006/dsa-1017 Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is (C) 2006 Michel Arboi |
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