A remote root vulnerability in slave setups and some buffer overflowsin the network information server code were discovered by the apcupsddevelopers.. - --------------------------------------------------------------------- GENTOO LINUX SECURITY ANNOUNCEMENT 200302-13 - --------------------------------------------------------------------- PACKAGE : apcupsd SUMMARY : remote root vulnerability and buffer overflows DATE : 2003-02-24 10:05 UTC EXPLOIT : remote VERSIONS AFFECTED : From Mandrake Linux Security Update Advisory MDKSA-2003:018: "A remote root vulnerability in slave setups and some buffer overflows in the network information server code were discovered by the apcupsd developers." Read the full advisory at: SOLUTION It is recommended that all Gentoo Linux users who are running sys-apps/apcupsd upgrade to apcupsd-3.10.5 as follows: emerge sync emerge -u apcupsd emerge clean - ---------------------------------------------------------------------
A remote attacker could send a speciallycrafted TCP packet that overflows a buffer, leaving heartbeat to execute arbitrary code as root.. ______________________________________________________________________________ SuSE Security Announcement Package: heartbeat Announcement-ID: SuSE-SA:2002:037 Date: Monday, Oct 14, 12:00 UTC Affected products: 8.0, 8.1 Vulnerability Type: remote root Severity (1-10): 7 SuSE default package: yes Cross References: Content of this advisory: 1) security vulnerability resolved: format string bug in heartbeat problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - util-linux - dhcpcd - heimdal - logsurfer - ghostscript 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Heartbeat is a monitoring service that is used to implement failover in high-availablity environments. It can be configured to monitor other systems via serial connections, or via UDP/IP. Several format string bugs have been discovered in the heartbeat package. One of these format string bugs is in the normal path of execution, all the remaining ones can only be triggered if heartbeat is running in debug mode. Since heartbeat is running with root privilege, this problem can possibly be exploited by remote attackers, provided they are able to send packets to the UDP port heartbeat is listening on (port 694 by default). Vulnerable versions of heartbeat are included in SuSE Linux 8.0 and SuSE Linux 8.1. As a workaround, make sure that your firewall blocks all traffic to the heartbeat UDP port. The proper fix is toupgrade to the packages provided by SuSE. In addition to fixing the format string bug, this update also changes heartbeat to perform processing of network packets as user "nobody" instead of root. The update package for SuSE Linux 8.1 also fixes a boot time problem with heartbeat. SuSE wishes to thank Nathan Wallwork for reporting the bug, and Alan Robertson for his assistance in dealing with this problem. For more information on this vulnerability, please refer to Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. i386 Intel Platform: SuSE-8.1 - being rebuilt SuSE-8.0 510f5a4c4c094ef0a98d46c53deae660 86e1d5ae00efedfeb7e29e47cec973f6 3067c26bd4a861e255b8e9dc74aad050 source rpm: e1df88a1af12d5e13cabc2662248f2c2 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - util/util-linux The mount and umount program did not set their umask properly before creating the mtab file. Local attackers could abuse the mount program to put arbitrary content into the /etc/mtab file. New packages are available on our ftp servers which fix this problem. An update is recommended. - dhcpcd The dhcpcd DHCP client daemon has the ability to execute an external script named /sbin/dhcpcd- .exe when assigning a new IP address. It is not installed by default, however. The script obtains the DHCP information by sourcing a file named /var/lib/dhcpcd/dhcpcd- .info, containing a list of shell variable assignments. Insufficient quoting of these assignments allowed malicious DHCP servers (or attackers able to spoof DHCP responses) to execute arbitrary shell commands on the DHCP client ifthe user had installed the script. - heimdal Within the SuSE Advisory SuSE-SA:2002:034 regarding the Heimdal packages, the following rpm was missing in the list: SuSE-7.3 7356a6c07dfe91d968939f6f52a5879d If you updated the Heimdal packgages for SuSE 7.3-i386, make sure you also update this package. - logsurfer New logsurfer (logsurf in SuSE-7.0) packages are available for download. These packages fix two errors (off-by-one overflow, uninitialized memory) in the logsurfer package that can lead to a crash of the program, resulting in a denial of service. It is unknown if the two bugs can be used to execute arbitrary code in the context of the logsurfer program. - ghostscript (CVE CAN-2002-0363) In ghostscript 6.50, setting the interpreter to SAFE mode was reversible. This could be exploited to subvert the accounts of users viewing malicious PostScript[tm], as well as the lp acount if the print system was enabled. SuSE has released updated RPMs for SuSE Linux 7.3 and SuSE Linux Enterprise Server 7 for PowerPC. No other SuSE platform is affected. - gv/ggv/kghostview (CVE CAN-2002-0832) The ghostview (gv) code had several buffer overflows when handling PostScript[tm] structural comments. These were also present in the GNOME and KDE PostScript viewers derived from it. SuSE has released fixed packages for these vulnerabilities. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independentlyfrom each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key
CORE ST reports that an exploit has been found for a bug in the wu-ftpdglob code (this is the code that handles filename wildcard expansion).Any logged in user (including anonymous ftp users) can exploit the bugto gain root privilege on the server.. ------------------------------------------------------------------------ Debian Security Advisory DSA-087-1
The version of wu-ftpd distributed in Debian GNU/Linux 2.1 (a.k.a. slink), as well as in the frozen (potato) and unstable (woody) distributions, is vulnerable to a remote root compromise.. -----BEGIN PGP SIGNED MESSAGE----- - ---------------------------------------------------------------------------- Debian Security Advisory
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