- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200803-30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: ssl-cert eclass: Certificate disclosure Date: March 20, 2008 Bugs: #174759 ID: 200803-30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== An error in the usage of the ssl-cert eclass within multiple ebuilds might allow for disclosure of generated SSL private keys. Background ========== The ssl-cert eclass is a code module used by Gentoo ebuilds to generate SSL certificates. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/conserver < 8.1.16 >= 8.1.16 2 mail-mta/postfix < 2.4.6-r2 >= 2.4.6-r2 *>= 2.3.8-r1 *>= 2.2.11-r1 3 net-ftp/netkit-ftpd < 0.17-r7 >= 0.17-r7 4 net-im/ejabberd < 1.1.3 >= 1.1.3 5 net-irc/unrealircd < 3.2.7-r2 >= 3.2.7-r2 6 net-mail/cyrus-imapd < 2.3.9-r1 >= 2.3.9-r1 7 net-mail/dovecot < 1.0.10 >= 1.0.10 8 net-misc/stunnel < 4.21-r1 >= 4.21-r1 < 4.0 9 net-nntp/inn < 2.4.3-r1 >= 2.4.3-r1 ------------------------------------------------------------------- 9 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== Robin Johnson reported that the docert() function provided by ssl-cert.eclass can be called by source building stages of an ebuild, such as src_compile() or src_install(), which will result in the generated SSL keys being included inside binary packages (binpkgs). Impact ====== A local attacker could recover the SSL keys from publicly readable binary packages when "emerge" is called with the "--buildpkg (-b)" or "--buildpkgonly (-B)" option. Remote attackers can recover these keys if the packages are served to a network. Binary packages built using "quickpkg" are not affected. Workaround ========== Do not use pre-generated SSL keys, but use keys that were generated using a different Certificate Authority. Resolution ========== Upgrading to newer versions of the above packages will neither remove possibly compromised SSL certificates, nor old binary packages. Please remove the certificates installed by Portage, and then emerge an upgrade to the package. All Conserver users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/conserver-8.1.16" All Postfix 2.4 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=mail-mta/postfix-2.4.6-r2" All Postfix 2.3 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=mail-mta/postfix-2.3.8-r1" All Postfix 2.2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=mail-mta/postfix-2.2.11-r1" All Netkit FTP Server users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-ftp/netkit-ftpd-0.17-r7" All ejabberd users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-im/ejabberd-1.1.3" All UnrealIRCd users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-irc/unrealircd-3.2.7-r2" All Cyrus IMAP Server users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/cyrus-imapd-2.3.9-r1" All Dovecot users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/dovecot-1.0.10" All stunnel 4 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/stunnel-4.21" All InterNetNews users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-nntp/inn-2.4.3-r1" References ========== [ 1 ] CVE-2008-1383 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1383 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200803-30.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5