Test ID:	1.3.6.1.4.1.25623.1.0.70546
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DSA-2323-1)
Summary:	The remote host is missing an update for the Debian 'radvd' package(s) announced via the DSA-2323-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'radvd' package(s) announced via the DSA-2323-1 advisory. Vulnerability Insight: Multiple security issues were discovered by Vasiliy Kulikov in radvd, an IPv6 Router Advertisement daemon: CVE-2011-3602 set_interface_var() function doesn't check the interface name, which is chosen by an unprivileged user. This could lead to an arbitrary file overwrite if the attacker has local access, or specific files overwrites otherwise. CVE-2011-3604 process_ra() function lacks multiple buffer length checks which could lead to memory reads outside the stack, causing a crash of the daemon. CVE-2011-3605 process_rs() function calls mdelay() (a function to wait for a defined time) unconditionally when running in unicast-only mode. As this call is in the main thread, that means all request processing is delayed (for a time up to MAX_RA_DELAY_TIME, 500 ms by default). An attacker could flood the daemon with router solicitations in order to fill the input queue, causing a temporary denial of service (processing would be stopped during all the mdelay() calls). Note: upstream and Debian default is to use anycast mode. For the oldstable distribution (lenny), this problem has been fixed in version 1:1.1-3.1. For the stable distribution (squeeze), this problem has been fixed in version 1:1.6-1.1. For the testing distribution (wheezy), this problem has been fixed in version 1:1.8-1.2. For the unstable distribution (sid), this problem has been fixed in version 1:1.8-1.2. We recommend that you upgrade your radvd packages. Affected Software/OS: 'radvd' package(s) on Debian 5, Debian 6. Solution: Please install the updated package(s). CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2011-3601 USN-1257-1 http://www.ubuntu.com/usn/USN-1257-1 [oss-security] 20111007 radvd 1.8.2 released with security fixes http://www.openwall.com/lists/oss-security/2011/10/06/3 http://www.litech.org/radvd/CHANGES Common Vulnerability Exposure (CVE) ID: CVE-2011-3602 DSA-2323 http://www.debian.org/security/2011/dsa-2323 https://github.com/reubenhwk/radvd/commit/92e22ca23e52066da2258df8c76a2dca8a428bcc Common Vulnerability Exposure (CVE) ID: CVE-2011-3604 Common Vulnerability Exposure (CVE) ID: CVE-2011-3605
Copyright	Copyright (C) 2012 Greenbone AG

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