On 12:28 08 Mar 2002, Lewi <[EMAIL PROTECTED]> wrote: | unspawn writes: Impact | HIGH: Existing users will gain root privileges. | | Synopsis | A bug exists in the channel code of OpenSSH versions 2.0 - 3.0.2 | Users with an existing user account can abuse this bug to | gain root privileges. [...] | should i stop sshd waiting for patch from redhat or....?
The patch is out. Details appended. Cameron Simpson, DoD#743 [EMAIL PROTECTED] http://www.zip.com.au/~cs/ Subject: Updated openssh packages available From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED], [EMAIL PROTECTED] --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: Updated openssh packages available Advisory ID: RHSA-2002:043-10 Issue date: 2002-03-05 Updated on: 2002-03-08 Product: Red Hat Linux Keywords: openssh sshd channel Cross references: Obsoletes: RHSA-2001:161 --------------------------------------------------------------------- 1. Topic: Updated openssh packages are now available for Red Hat Linux 7, 7.1, and 7.2 which close a remotely-exploitable vulnerability in sshd. 2. Relevant releases/architectures: Red Hat Linux 7.0 - alpha, i386 Red Hat Linux 7.1 - alpha, i386, ia64 Red Hat Linux 7.2 - i386, ia64 3. Problem description: Joost Pol has discovered an off-by-one error in all versions of the OpenSSH daemon (sshd) prior to version 3.1. This issue could allow an authenticated user to cause sshd to corrupt its heap, potentially allowing arbitrary code to be executed on the remote server. Alternatively, a malicious SSH server could be crafted to attack a vulnerable OpenSSH client. Users are advised to upgrade to these errata packages containing OpenSSH 3.1, which is not vulnerable to this issue. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2002-0083 to this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info): 60829 - HIGH: Existing users will gain root privileges. 6. RPMs required: Red Hat Linux 7.0: SRPMS: ftp://updates.redhat.com/7.0/en/os/SRPMS/openssh-3.1p1-1.src.rpm alpha: ftp://updates.redhat.com/7.0/en/os/alpha/openssh-3.1p1-1.alpha.rpm ftp://updates.redhat.com/7.0/en/os/alpha/openssh-clients-3.1p1-1.alpha.rpm ftp://updates.redhat.com/7.0/en/os/alpha/openssh-server-3.1p1-1.alpha.rpm ftp://updates.redhat.com/7.0/en/os/alpha/openssh-askpass-3.1p1-1.alpha.rpm ftp://updates.redhat.com/7.0/en/os/alpha/openssh-askpass-gnome-3.1p1-1.alpha.rpm i386: ftp://updates.redhat.com/7.0/en/os/i386/openssh-3.1p1-1.i386.rpm ftp://updates.redhat.com/7.0/en/os/i386/openssh-clients-3.1p1-1.i386.rpm ftp://updates.redhat.com/7.0/en/os/i386/openssh-server-3.1p1-1.i386.rpm ftp://updates.redhat.com/7.0/en/os/i386/openssh-askpass-3.1p1-1.i386.rpm ftp://updates.redhat.com/7.0/en/os/i386/openssh-askpass-gnome-3.1p1-1.i386.rpm Red Hat Linux 7.1: SRPMS: ftp://updates.redhat.com/7.1/en/os/SRPMS/openssh-3.1p1-1.src.rpm alpha: ftp://updates.redhat.com/7.1/en/os/alpha/openssh-3.1p1-1.alpha.rpm ftp://updates.redhat.com/7.1/en/os/alpha/openssh-clients-3.1p1-1.alpha.rpm ftp://updates.redhat.com/7.1/en/os/alpha/openssh-server-3.1p1-1.alpha.rpm ftp://updates.redhat.com/7.1/en/os/alpha/openssh-askpass-3.1p1-1.alpha.rpm ftp://updates.redhat.com/7.1/en/os/alpha/openssh-askpass-gnome-3.1p1-1.alpha.rpm i386: ftp://updates.redhat.com/7.1/en/os/i386/openssh-3.1p1-1.i386.rpm ftp://updates.redhat.com/7.1/en/os/i386/openssh-clients-3.1p1-1.i386.rpm ftp://updates.redhat.com/7.1/en/os/i386/openssh-server-3.1p1-1.i386.rpm ftp://updates.redhat.com/7.1/en/os/i386/openssh-askpass-3.1p1-1.i386.rpm ftp://updates.redhat.com/7.1/en/os/i386/openssh-askpass-gnome-3.1p1-1.i386.rpm ia64: ftp://updates.redhat.com/7.1/en/os/ia64/openssh-3.1p1-1.ia64.rpm ftp://updates.redhat.com/7.1/en/os/ia64/openssh-clients-3.1p1-1.ia64.rpm ftp://updates.redhat.com/7.1/en/os/ia64/openssh-server-3.1p1-1.ia64.rpm ftp://updates.redhat.com/7.1/en/os/ia64/openssh-askpass-3.1p1-1.ia64.rpm ftp://updates.redhat.com/7.1/en/os/ia64/openssh-askpass-gnome-3.1p1-1.ia64.rpm Red Hat Linux 7.2: SRPMS: ftp://updates.redhat.com/7.2/en/os/SRPMS/openssh-3.1p1-2.src.rpm i386: ftp://updates.redhat.com/7.2/en/os/i386/openssh-3.1p1-2.i386.rpm ftp://updates.redhat.com/7.2/en/os/i386/openssh-clients-3.1p1-2.i386.rpm ftp://updates.redhat.com/7.2/en/os/i386/openssh-server-3.1p1-2.i386.rpm ftp://updates.redhat.com/7.2/en/os/i386/openssh-askpass-3.1p1-2.i386.rpm ftp://updates.redhat.com/7.2/en/os/i386/openssh-askpass-gnome-3.1p1-2.i386.rpm ia64: ftp://updates.redhat.com/7.2/en/os/ia64/openssh-3.1p1-2.ia64.rpm ftp://updates.redhat.com/7.2/en/os/ia64/openssh-clients-3.1p1-2.ia64.rpm ftp://updates.redhat.com/7.2/en/os/ia64/openssh-server-3.1p1-2.ia64.rpm ftp://updates.redhat.com/7.2/en/os/ia64/openssh-askpass-3.1p1-2.ia64.rpm ftp://updates.redhat.com/7.2/en/os/ia64/openssh-askpass-gnome-3.1p1-2.ia64.rpm 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- 26d50a9b0c36fb1dc58247fbf0e413af 7.0/en/os/SRPMS/openssh-3.1p1-1.src.rpm 54de9c01ad5fe21e228d0b4d48581e62 7.0/en/os/alpha/openssh-3.1p1-1.alpha.rpm 9ceeff94d7f2bc34dbbaf8c36012eb3a 7.0/en/os/alpha/openssh-askpass-3.1p1-1.alpha.rpm 1d9ec549531b3c53221d522ab305af42 7.0/en/os/alpha/openssh-askpass-gnome-3.1p1-1.alpha.rpm b1ea5c7c6b0de2887b09848138c21e9b 7.0/en/os/alpha/openssh-clients-3.1p1-1.alpha.rpm 41b8b1cbf4842b1f2075155fa8f65b72 7.0/en/os/alpha/openssh-server-3.1p1-1.alpha.rpm e250bc4f15b417d23cee868030e576a3 7.0/en/os/i386/openssh-3.1p1-1.i386.rpm 84076eb5a5b79c42314c2b904ad1b3a7 7.0/en/os/i386/openssh-askpass-3.1p1-1.i386.rpm 57428dc06c9dfa3447038c59cc179ff2 7.0/en/os/i386/openssh-askpass-gnome-3.1p1-1.i386.rpm 497cfa67d62ebd7b8b97dddf0267309c 7.0/en/os/i386/openssh-clients-3.1p1-1.i386.rpm 9aef89c9b5e5ca5b463789d8ff245d7f 7.0/en/os/i386/openssh-server-3.1p1-1.i386.rpm 26d50a9b0c36fb1dc58247fbf0e413af 7.1/en/os/SRPMS/openssh-3.1p1-1.src.rpm 54de9c01ad5fe21e228d0b4d48581e62 7.1/en/os/alpha/openssh-3.1p1-1.alpha.rpm 9ceeff94d7f2bc34dbbaf8c36012eb3a 7.1/en/os/alpha/openssh-askpass-3.1p1-1.alpha.rpm 1d9ec549531b3c53221d522ab305af42 7.1/en/os/alpha/openssh-askpass-gnome-3.1p1-1.alpha.rpm b1ea5c7c6b0de2887b09848138c21e9b 7.1/en/os/alpha/openssh-clients-3.1p1-1.alpha.rpm 41b8b1cbf4842b1f2075155fa8f65b72 7.1/en/os/alpha/openssh-server-3.1p1-1.alpha.rpm e250bc4f15b417d23cee868030e576a3 7.1/en/os/i386/openssh-3.1p1-1.i386.rpm 84076eb5a5b79c42314c2b904ad1b3a7 7.1/en/os/i386/openssh-askpass-3.1p1-1.i386.rpm 57428dc06c9dfa3447038c59cc179ff2 7.1/en/os/i386/openssh-askpass-gnome-3.1p1-1.i386.rpm 497cfa67d62ebd7b8b97dddf0267309c 7.1/en/os/i386/openssh-clients-3.1p1-1.i386.rpm 9aef89c9b5e5ca5b463789d8ff245d7f 7.1/en/os/i386/openssh-server-3.1p1-1.i386.rpm f0d343b01c91bb5b99a1c84992e0fdca 7.1/en/os/ia64/openssh-3.1p1-1.ia64.rpm 1de814f44f07bef9a95d1802c507c79f 7.1/en/os/ia64/openssh-askpass-3.1p1-1.ia64.rpm b01087dc75468ad5a79492bcd83a269e 7.1/en/os/ia64/openssh-askpass-gnome-3.1p1-1.ia64.rpm 25a34e33830ada8c24b71934cdb246ef 7.1/en/os/ia64/openssh-clients-3.1p1-1.ia64.rpm 3c2ef228fc7e4d8a1b94a5600ace8912 7.1/en/os/ia64/openssh-server-3.1p1-1.ia64.rpm f90c4686944897e87b15be09626ff4dc 7.2/en/os/SRPMS/openssh-3.1p1-2.src.rpm f8c46c51f3bd74a8437a7fb1f0b15502 7.2/en/os/i386/openssh-3.1p1-2.i386.rpm ef80fbb8b75ed3ff627c2fe060fc5165 7.2/en/os/i386/openssh-askpass-3.1p1-2.i386.rpm 7b2a01eff4dcf0601ff4b54becb949d6 7.2/en/os/i386/openssh-askpass-gnome-3.1p1-2.i386.rpm 1d2528e9f4af919f730423b7bb7a815d 7.2/en/os/i386/openssh-clients-3.1p1-2.i386.rpm 7b65f56a9044dad10f02f444774a9b32 7.2/en/os/i386/openssh-server-3.1p1-2.i386.rpm 343c66f5608e3fd48d5c3b12b66096fa 7.2/en/os/ia64/openssh-3.1p1-2.ia64.rpm 04c1c42e644d9470c41138ffed684628 7.2/en/os/ia64/openssh-askpass-3.1p1-2.ia64.rpm 72aef4e9c4f0213ca371d205830cb05e 7.2/en/os/ia64/openssh-askpass-gnome-3.1p1-2.ia64.rpm c07001458b48ba0dbb2e960db9b93eb9 7.2/en/os/ia64/openssh-clients-3.1p1-2.ia64.rpm 700054c98ffbec257d4c1b12b02a9867 7.2/en/os/ia64/openssh-server-3.1p1-2.ia64.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: http://www.redhat.com/about/contact/pgpkey.html You can verify each package with the following command: rpm --checksig <filename> If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg <filename> 8. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0083 http://marc.theaimsgroup.com/?l=openssh-unix-dev&m=101550282514683 Copyright(c) 2000, 2001, 2002 Red Hat, Inc. _______________________________________________ Redhat-watch-list mailing list To unsubscribe, visit: https://listman.redhat.com/mailman/listinfo/redhat-watch-list _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
