Red Hat OVAL Patch Definition Merger 2 5.3 2008-01-23T07:23:24 Red Hat Enterprise Linux 3 Quagga is an open source implementation of TCP/IP routing software. Herbert Xu reported that Quagga can accept spoofed messages sent on the kernel netlink interface by other users on the local machine. This could lead to a local denial of service attack. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0858 to this issue. Users of Quagga should upgrade to these erratum packages, which contain a patch that checks that netlink messages actually came from the kernel. This erratum also includes quagga-devel and quagga-contrib packages which were not originally shipped with Red Hat Enterprise Linux 3. Low Copyright 2003 Red Hat, Inc. CVE-2003-0858 cpe://redhat:enterprise_linux:3 Red Hat Enterprise Linux 3 The iproute package contains advanced IP routing and network device configuration tools. Herbert Xu reported that iproute can accept spoofed messages sent on the kernel netlink interface by other users on the local machine. This could lead to a local denial of service attack. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0856 to this issue. Users of iproute should upgrade to these erratum packages, which contain a patch that checks that netlink messages actually came from the kernel. Low Copyright 2003 Red Hat, Inc. CVE-2003-0856 cpe://redhat:enterprise_linux:3 Red Hat Enterprise Linux 3 Ethereal is a program for monitoring network traffic. A number of security issues affect Ethereal. By exploiting these issues, it may be possible to make Ethereal crash or run arbitrary code by injecting a purposefully-malformed packet onto the wire or by convincing someone to read a malformed packet trace file. A buffer overflow in Ethereal 0.9.15 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via a malformed GTP MSISDN string. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0925 to this issue. Ethereal 0.9.15 and earlier allows remote attackers to cause a denial of service (crash) via certain malformed ISAKMP or MEGACO packets. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0926 to this issue. A heap-based buffer overflow in Ethereal 0.9.15 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via the SOCKS dissector. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0927 to this issue. Users of Ethereal should update to these erratum packages containing Ethereal version 0.9.16, which is not vulnerable to these issues. Moderate Copyright 2003 Red Hat, Inc. CVE-2003-0925 CVE-2003-0926 CVE-2003-0927 cpe://redhat:enterprise_linux:3 Red Hat Enterprise Linux 3 The glibc packages contain GNU libc, which provides standard system libraries. Herbert Xu reported that various applications can accept spoofed messages sent on the kernel netlink interface by other users on the local machine. This could lead to a local denial of service attack. The glibc function getifaddrs uses netlink and could therefore be vulnerable to this issue. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0859 to this issue. In addition to the security issues, a number of other bugs were fixed. Users are advised to upgrade to these erratum packages, which contain a patch that checks that netlink messages actually came from the kernel and patches for the various bug fixes. Low Copyright 2003 Red Hat, Inc. CVE-2003-0859 cpe://redhat:enterprise_linux:3 Red Hat Enterprise Linux 3 FreeRADIUS is an Internet authentication daemon, which implements the RADIUS protocol. It allows Network Access Servers (NAS boxes) to perform authentication for dial-up users. The rad_decode function in FreeRADIUS 0.9.2 and earlier allows remote attackers to cause a denial of service (crash) via a short RADIUS string attribute with a tag, which causes memcpy to be called with a -1 length argument, as demonstrated using the Tunnel-Password attribute. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0967 to this issue. Users of FreeRADIUS are advised to upgrade to these erratum packages containing FreeRADIUS 0.9.3 which is not vulnerable to these issues. Moderate Copyright 2003 Red Hat, Inc. CVE-2003-0967 cpe://redhat:enterprise_linux:3 Red Hat Enterprise Linux 3 GnuPG is a utility for encrypting data and creating digital signatures. Phong Nguyen identified a severe bug in the way GnuPG creates and uses ElGamal keys, when those keys are used both to sign and encrypt data. This vulnerability can be used to trivially recover the private key. While the default behavior of GnuPG when generating keys does not lead to the creation of unsafe keys, by overriding the default settings an unsafe key could have been created. If you are using ElGamal keys, you should revoke those keys immediately. The packages included in this update do not make ElGamal keys safe to use; they merely include a patch by David Shaw that disables functions that would generate or use ElGamal keys. To determine if your key is affected, run the following command to obtain a list of secret keys that you have on your secret keyring: gpg --list-secret-keys The output of this command includes both the size and type of the keys found, and will look similar to this example: /home/example/.gnupg/secring.gpg ---------------------------------------------------- sec 1024D/01234567 2000-10-17 Example User <example@example.com> uid Example User <example@example.com> The key length, type, and ID are listed together, separated by a forward slash. In the example output above, the key's type is "D" (DSA, sign and encrypt). Your key is unsafe if and only if the key type is "G" (ElGamal, sign and encrypt). In the above example, the secret key is safe to use, while the secret key in the following example is not: /home/example/.gnupg/secring.gpg ---------------------------------------------------- sec 1024G/01234567 2000-10-17 Example User <example@example.com> uid Example User <example@example.com> For more details regarding this issue, as well as instructions on how to revoke any keys that are unsafe, refer to the advisory available from the GnuPG web site: http://www.gnupg.org/ Important Copyright 2003 Red Hat, Inc. CVE-2003-0971 cpe://redhat:enterprise_linux:3 Red Hat Enterprise Linux 3 rsync is a program for sychronizing files over the network. A heap overflow bug exists in rsync versions prior to 2.5.7. On machines where the rsync server has been enabled, a remote attacker could use this flaw to execute arbitrary code as an unprivileged user. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0962 to this issue. All users should upgrade to these erratum packages containing version 2.5.7 of rsync, which is not vulnerable to this issue. NOTE: The rsync server is disabled (off) by default in Red Hat Enterprise Linux. To check if the rsync server has been enabled (on), run the following command: /sbin/chkconfig --list rsync If the rsync server has been enabled but is not required, it can be disabled by running the following command as root: /sbin/chkconfig rsync off Red Hat would like to thank the rsync team for their rapid response and quick fix for this issue. Critical Copyright 2003 Red Hat, Inc. CVE-2003-0962 cpe://redhat:enterprise_linux:3 Red Hat Enterprise Linux 3 lftp is a command-line file transfer program supporting FTP and HTTP protocols. Ulf Härnhammar discovered a buffer overflow bug in versions of lftp up to and including 2.6.9. An attacker could create a carefully crafted directory on a website such that, if a user connects to that directory using the lftp client and subsequently issues a 'ls' or 'rels' command, the attacker could execute arbitrary code on the users machine. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0963 to this issue. Users of lftp are advised to upgrade to these erratum packages, which contain a backported security patch and are not vulnerable to this issue. Red Hat would like to thank Ulf Härnhammar for discovering and alerting us to this issue. Moderate Copyright 2007 Red Hat, Inc. CVE-2003-0963 cpe://redhat:enterprise_linux:3 Red Hat Enterprise Linux 3 The Linux kernel handles the basic functions of the operating system. Paul Starzetz discovered a flaw in bounds checking in mremap() in the Linux kernel versions 2.4.23 and previous which may allow a local attacker to gain root privileges. No exploit is currently available; however, it is believed that this issue is exploitable (although not trivially.) The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0985 to this issue. All users of Red Hat Enterprise Linux 3 are advised to upgrade to these errata packages, which contain a backported security patch that corrects this issue. Red Hat would like to thank Paul Starzetz from ISEC for disclosing this issue as well as Andrea Arcangeli and Solar Designer for working on the patch. Important Copyright 2004 Red Hat, Inc. CVE-2003-0985 cpe://redhat:enterprise_linux:3