Stay Secure with the Latest Linux Advisories

security advisoryimportantgnuPG

Red Hat Enterprise Linux 5: RHSA-2007:0107-02 Critical: GnuPG Spoofing

Updated GnuPG packages that fix a security issue are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team.. - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Important: gnupg security update Advisory ID: RHSA-2007:0107-02 Advisory URL: https://access.redhat.com/errata/RHSA-2007:0107.html Issue date: 2007-03-13 Updated on: 2007-03-14 Product: Red Hat Enterprise Linux CVE Names: CVE-2007-1263 - ---------------------------------------------------------------------1. Summary: Updated GnuPG packages that fix a security issue are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 3. Problem description: GnuPG is a utility for encrypting data and creating digital signatures. Gerardo Richarte discovered that a number of applications that make use of GnuPG are prone to a vulnerability involving incorrect verification of signatures and encryption. An attacker could add arbitrary content to a signed message in such a way that a receiver of the message would not be able to distinguish between the properly signed parts of a message and the forged, unsigned, parts. (CVE-2007-1263) Whilst this is not a vulnerability in GnuPG itself, the GnuPG team have produced a patch to protect against messages with multiple plaintext packets. Users should update to these erratum packages which contain the backported patch for this issue. Red Hat would like to thank Core Security Technologies for reporting this issue. 4. Solution: Before applying this update, make sure that allpreviously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at 5. Bug IDs fixed (http://bugzilla.redhat.com/): 230467 - CVE-2007-1263 gnupg signed message spoofing 6. RPMs required: Red Hat Enterprise Linux Desktop (v. 5 client): SRPMS: 88df873d2b167bdfbb313f3a1ec2ea63 gnupg-1.4.5-13.src.rpm i386: 47649e57708dfae65f65af9cb619c00d gnupg-1.4.5-13.i386.rpm da2323dcad0b79ef3025ec908456ba49 gnupg-debuginfo-1.4.5-13.i386.rpm x86_64: d3954a6a0eb0f6a304b2e2ef50401927 gnupg-1.4.5-13.x86_64.rpm b46e792adafc0994c69a34894736f09e gnupg-debuginfo-1.4.5-13.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): SRPMS: 88df873d2b167bdfbb313f3a1ec2ea63 gnupg-1.4.5-13.src.rpm i386: 47649e57708dfae65f65af9cb619c00d gnupg-1.4.5-13.i386.rpm da2323dcad0b79ef3025ec908456ba49 gnupg-debuginfo-1.4.5-13.i386.rpm ia64: 264ad7041effae5b298835ce0ea670da gnupg-1.4.5-13.ia64.rpm b96a92a5570c2a2f108980e8f763b555 gnupg-debuginfo-1.4.5-13.ia64.rpm ppc: 1a52050adf71e8b6aed8133e500569f4 gnupg-1.4.5-13.ppc.rpm 2b3765fc4aad400474eec29987157722 gnupg-debuginfo-1.4.5-13.ppc.rpm s390x: 589c91def49fc94470e62b705bc30d28 gnupg-1.4.5-13.s390x.rpm daffde420c50a8e5a7b8e2a97d54fbe7 gnupg-debuginfo-1.4.5-13.s390x.rpm x86_64: d3954a6a0eb0f6a304b2e2ef50401927 gnupg-1.4.5-13.x86_64.rpm b46e792adafc0994c69a34894736f09e gnupg-debuginfo-1.4.5-13.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key#package 7. References: https://www.cve.org/CVERecord?id=CVE-2007-1263 https://access.redhat.com/security/updates/classification#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact Copyright 2007 Red Hat, Inc. . This criticalannouncement pertains to a libSSH vulnerability in Ubuntu Server, with essential remedies being made available.. Red Hat Security, GnuPG Update, Important Fix. . Severity: Important. LinuxSecurity.com Team

Mar 14, 2007 •Important Red Hat