CVE-2017-14099 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14099): In res/res_rtp_asterisk.c in Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before 11.6-cert17 and 13.x before 13.13-cert5, unauthorized data disclosure (media takeover in the RTP stack) is possible with careful timing by an attacker. The "strictrtp" option in rtp.conf enables a feature of the RTP stack that learns the source address of media for a session and drops any packets that do not originate from the expected address. This option is enabled by default in Asterisk 11 and above. The "nat" and "rtp_symmetric" options (for chan_sip and chan_pjsip, respectively) enable symmetric RTP support in the RTP stack. This uses the source address of incoming media as the target address of any sent media. This option is not enabled by default, but is commonly enabled to handle devices behind NAT. A change was made to the strict RTP support in the RTP stack to better tolerate late media when a reinvite occurs. When combined with the symmetric RTP support, this introduced an avenue where media could be hijacked. Instead of only learning a new address when expected, the new code allowed a new source address to be learned at all times. If a flood of RTP traffic was received, the strict RTP support would allow the new address to provide media, and (with symmetric RTP enabled) outgoing traffic would be sent to this new address, allowing the media to be hijacked. Provided the attacker continued to send traffic, they would continue to receive traffic as well. References: https://rtpbleed.com/ http://downloads.asterisk.org/pub/security/AST-2017-005.html https://bugs.debian.org/873907 https://issues.asterisk.org/jira/browse/ASTERISK-27013 Patch: http://downloads.asterisk.org/pub/security/AST-2017-005-11.diff CVE-2017-14100 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14100): In Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before 11.6-cert17 and 13.x before 13.13-cert5, unauthorized command execution is possible. The app_minivm module has an "externnotify" program configuration option that is executed by the MinivmNotify dialplan application. The application uses the caller-id name and number as part of a built string passed to the OS shell for interpretation and execution. Since the caller-id name and number can come from an untrusted source, a crafted caller-id name or number allows an arbitrary shell command injection. References: http://downloads.asterisk.org/pub/security/AST-2017-006.html https://bugs.debian.org/873908 https://issues.asterisk.org/jira/browse/ASTERISK-27103 Patch: http://downloads.asterisk.org/pub/security/AST-2017-006-11.diff
Arches, please test & mark stable: =net-misc/asterisk-11.25.3
x86 stable
amd64 stable. Maintainer(s), please cleanup. Security, please add it to the existing request, or file a new one.
New GLSA request filed. Gentoo Security Padawan (jmbailey/mbailey_j)
This issue was resolved and addressed in GLSA 201710-29 at https://security.gentoo.org/glsa/201710-29 by GLSA coordinator Aaron Bauman (b-man).
re-opened for cleanup.
tree is clean