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CVE-2011-2189

Status Candidate

Overview

net/core/net_namespace.c in the Linux kernel 2.6.32 and earlier does not properly handle a high rate of creation and cleanup of network namespaces, which makes it easier for remote attackers to cause a denial of service (memory consumption) via requests to a daemon that requires a separate namespace per connection, as demonstrated by vsftpd.

Related Files

Ubuntu Security Notice USN-1288-1
Posted Dec 7, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1288-1 - It was discovered that the 2.6.35 and earlier Linux kernel does not properly handle a high rate of creation and cleanup of network namespaces, which makes it easier for remote attackers to cause a denial of service (memory consumption) in applications that require a separate namespace per connection, like vsftpd. This update adjusts vsftpd to only use network namespaces on kernels that are known to be not affected.

tags | advisory, remote, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2011-2189
SHA-256 | b6fa8f8d04a036dd6872e1f5e1d5f95c59df9f7d97a38bfac368ad75d2547cc4
Debian Security Advisory 2305-1
Posted Sep 19, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2305-1 - Two security issue have been discovered that affect vsftpd, a lightweight, efficient FTP server written for security.

tags | advisory
systems | linux, debian
advisories | CVE-2011-0762, CVE-2011-2189
SHA-256 | d1013c9209e9503db4e32189f1ad82768a403b81814dbf62efc924b7a59799f6
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