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