Description
Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1; as well as certified-asterisk prior to 18.9-cert6; Asterisk is susceptible to a DoS due to a race condition in the hello handshake phase of the DTLS protocol when handling DTLS-SRTP for media setup. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6.
Mitigation
Minimal update. May introduce new vulnerabilities or breaking changes.
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 alpine v3.22 | | | 20.5.1-r0 |
 alpine v3.17 | | | 18.20.2-r0 |
 alpine v3.16 | | | 18.20.2-r0 |
 alpine v3.18 | | | 18.20.2-r0 |
 alpine v3.19 | | | 20.5.1-r0 |
 alpine v3.20 | | | 20.5.1-r0 |
 alpine v3.21 | | | 20.5.1-r0 |
 alpine v3.24 | | | 20.5.1-r0 |
 alpine v3.23 | | | 20.5.1-r0 |
 debian 14 | | =0.1.11-3 || =0.1.11-3woody1 || =1:1.0.5-2 || =1:1.0.5-4 || =1:1.0.6-1 || =1:1.0.6-2 || =1:1.0.7-1 || =1:1.0.7.dfsg.1-1 || =1:1.0.7.dfsg.1-2 || =1:1.0.7.dfsg.1-2sarge1 || =1:1.0.7.dfsg.1-2sarge2 || =1:1.0.7.dfsg.1-2sarge3 || =1:1.0.7.dfsg.1-2sarge4 || =1:1.0.7.dfsg.1-2sarge5 || =1:1.0.7.dfsg.1-2sarge6 || =1:1.0.9.dfsg-1 || =1:1.0.9.dfsg-3 || =1:1.0.9.dfsg-4 || =1:1.0.9.dfsg-5 || =1:1.0.9.dfsg-6 || =1:1.2.0-beta1.dfsg-1 || =1:1.2.0-beta2.dfsg-1 || =1:1.2.0-beta2.dfsg-2 || =1:1.2.0-beta2.dfsg-3 || =1:1.2.0-rc1.dfsg-1 || =1:1.2.0-rc2.dfsg-1 || =1:1.2.0.dfsg-1 || =1:1.2.0.dfsg-2 || =1:1.2.0.dfsg-3 || =1:1.2.0.dfsg-4 || =1:1.2.0.dfsg-5 || =1:1.2.0.dfsg-6 || =1:1.2.1.dfsg-1 || =1:1.2.1.dfsg-2 || =1:1.2.1.dfsg-3 || =1:1.2.10.dfsg-1 || =1:1.2.10.dfsg-1bpo1 || =1:1.2.10.dfsg-2 || =1:1.2.10.dfsg-3 || =1:1.2.11.dfsg-1 || =1:1.2.12.1.dfsg-1 || =1:1.2.13~dfsg-1 || =1:1.2.13~dfsg-2 || =1:1.2.13~dfsg-2etch1 || =1:1.2.13~dfsg-2etch2 || =1:1.2.13~dfsg-2etch3 || =1:1.2.13~dfsg-2etch4 || =1:1.2.14~dfsg-1 || =1:1.2.14~dfsg-2 || =1:1.2.14~dfsg-3 || =1:1.2.14~dfsg-4 || =1:1.2.15~dfsg-1 || =1:1.2.16~dfsg-1 || =1:1.2.17~dfsg-1 || =1:1.2.4.dfsg-1 || =1:1.2.4.dfsg-2 || =1:1.2.4.dfsg-3 || =1:1.2.4.dfsg-4 || =1:1.2.4.dfsg-5 || =1:1.2.4.dfsg-6 || =1:1.2.4.dfsg-6+b1 || =1:1.2.4.dfsg-7 || =1:1.2.7.1.dfsg-1 || =1:1.2.7.1.dfsg-2 || =1:1.2.7.1.dfsg-3 || =1:1.2.9.1.dfsg-1 || =1:1.4.10~dfsg-1 || =1:1.4.11~dfsg-1 || =1:1.4.11~dfsg-2 || =1:1.4.11~dfsg-3 || =1:1.4.11~dfsg-4 || =1:1.4.13~dfsg-1 || =1:1.4.15~dfsg-1 || =1:1.4.16.2~dfsg-1 || =1:1.4.16.2~dfsg-2 || =1:1.4.17~dfsg-1 || =1:1.4.17~dfsg-2 || =1:1.4.18.1~dfsg-1 || =1:1.4.18~dfsg-1 || =1:1.4.19.1~dfsg-1 || =1:1.4.20~dfsg-1 || =1:1.4.21.1~dfsg-1 || =1:1.4.21.2~dfsg-1 || =1:1.4.21.2~dfsg-2 || =1:1.4.21.2~dfsg-3 || =1:1.4.21.2~dfsg-3+lenny1 || =1:1.4.21.2~dfsg-3+lenny2 || =1:1.4.21.2~dfsg-3+lenny2.1 || =1:1.4.21.2~dfsg-3+lenny3 || =1:1.4.21.2~dfsg-3+lenny5 || =1:1.4.21.2~dfsg-3+lenny6 || =1:1.4.21.2~dfsg-3.1 || =1:1.4.2~dfsg-1 || =1:1.4.2~dfsg-2 || =1:1.4.2~dfsg-3 || =1:1.4.2~dfsg-4 || =1:1.4.2~dfsg-5 || =1:1.4.3~dfsg-1 || =1:1.4.4~dfsg-1 || =1:1.4.4~dfsg-2 || =1:1.4.4~dfsg-3 || =1:1.4.5~dfsg-1 || =1:1.4.6~dfsg-1 || =1:1.4.8~dfsg-1 || =1:1.4.8~dfsg-2 || =1:1.4.9~dfsg-1 || =1:1.6.1.0~dfsg-1 || =1:1.6.1.0~dfsg~rc3-1 || =1:1.6.2.0-1 || =1:1.6.2.0~dfsg~beta3-1 || =1:1.6.2.0~dfsg~rc1-1 || =1:1.6.2.0~rc3-1 || =1:1.6.2.0~rc3-2 || =1:1.6.2.0~rc6-1 || =1:1.6.2.0~rc7-1 || =1:1.6.2.2-1 || =1:1.6.2.6-1 || =1:1.6.2.7-1 || =1:1.6.2.9-1 || =1:1.6.2.9-1~bpo50+1 || =1:1.6.2.9-1~bpo50+2 || =1:1.6.2.9-1~bpo50+3 || =1:1.6.2.9-2 || =1:1.6.2.9-2+squeeze1 || =1:1.6.2.9-2+squeeze10 || =1:1.6.2.9-2+squeeze11 || =1:1.6.2.9-2+squeeze12 || =1:1.6.2.9-2+squeeze2 || =1:1.6.2.9-2+squeeze3 || =1:1.6.2.9-2+squeeze4 || =1:1.6.2.9-2+squeeze5 || =1:1.6.2.9-2+squeeze6 || =1:1.6.2.9-2+squeeze7 || =1:1.6.2.9-2+squeeze8 || =1:1.6.2.9-2+squeeze9 || =1:1.8.10.0~dfsg-1 || =1:1.8.10.1~dfsg-1 || =1:1.8.11.1~dfsg-1 || =1:1.8.13.0~dfsg-1 || =1:1.8.13.0~dfsg-1~bpo60+1 || =1:1.8.13.1~dfsg-1 || =1:1.8.13.1~dfsg-1+powerpcspe1 || =1:1.8.13.1~dfsg-1~bpo60+1 || =1:1.8.13.1~dfsg-2 || =1:1.8.13.1~dfsg-3 || =1:1.8.3.3-1 || =1:1.8.4-1 || =1:1.8.4.2-1 || =1:1.8.4.3-1 || =1:1.8.4.4~dfsg-1 || =1:1.8.4.4~dfsg-2 || =1:1.8.7.1~dfsg-1 || =1:1.8.7.1~dfsg-2 || =1:1.8.7.1~dfsg-3 || =1:1.8.8.0~dfsg-1 || =1:1.8.8.2~dfsg-1 || =1:11.10.0~dfsg-1 || =1:11.10.0~dfsg-1~bpo70+1 || =1:11.10.2~dfsg-1 || =1:11.10.2~dfsg-1~bpo70+1 || =1:11.11.0~dfsg-1 || =1:11.11.0~dfsg-1~bpo70+1 || =1:11.11.0~dfsg-2 || =1:11.12.0~dfsg-1 || =1:11.12.0~dfsg-1~bpo70+1 || =1:11.12.1~dfsg-1 || =1:11.13.0~dfsg-1 || =1:11.13.0~dfsg-1~bpo70+1 || =1:11.13.1~dfsg-1 || =1:11.13.1~dfsg-2 || =1:11.13.1~dfsg-2~bpo70+1 || =1:11.5.1~dfsg-1 || =1:11.5.1~dfsg-2 || =1:11.5.1~dfsg1-1 || =1:11.5.1~dfsg1-1~bpo70+1 || =1:11.6.0~dfsg-1 || =1:11.6.0~dfsg-2 || =1:11.6.0~dfsg-3 || =1:11.7.0~dfsg-1 || =1:11.7.0~dfsg-1+e1 || =1:11.7.0~dfsg-1~bpo70+1 || =1:11.8.0~dfsg-1 || =1:11.8.0~dfsg-2 || =1:11.8.1~dfsg-1 || =1:11.8.1~dfsg-1~bpo70+1 || =1:11.9.0~dfsg-1 || =1:11.9.0~dfsg-2 || =1:11.9.0~dfsg-2~bpo70+1 || =1:13.0.0~dfsg-1 || =1:13.0.0~dfsg-2 || =1:13.1.0~dfsg-1 || =1:13.1.0~dfsg-1.1 || =1:13.10.0~dfsg-1 || =1:13.11.2~dfsg-1 || =1:13.12.1~dfsg-1 || =1:13.12.2~dfsg-1 || =1:13.12.2~dfsg-2 || =1:13.13.1~dfsg-1 || =1:13.13.1~dfsg-2 || =1:13.13.1~dfsg-3 || =1:13.13.1~dfsg-3~exp1 || =1:13.13.1~dfsg-4 || =1:13.14.0~dfsg-1 || =1:13.14.0~dfsg-1~exp1 || =1:13.14.1~dfsg-1 || =1:13.14.1~dfsg-2 || =1:13.17.0~dfsg-1 || =1:13.17.0~dfsg-2 || =1:13.17.1~dfsg-1 || =1:13.17.2~dfsg-1 || =1:13.17.2~dfsg-2 || =1:13.18.1~dfsg-1 || =1:13.18.3~dfsg-1 || =1:13.18.5~dfsg-1 || =1:13.20.0~dfsg-1 || =1:13.22.0~dfsg-1 || =1:13.22.0~dfsg-2 || =1:13.23.1~dfsg-1 || =1:13.23.1~dfsg-2 || =1:13.7.2~dfsg-1 || =1:13.8.0~dfsg-1 || =1:13.8.2~dfsg-1 || =1:13.9.1~dfsg-1 || =1:13.9.1~dfsg-2 || =1:16.1.0~dfsg-1 || =1:16.1.0~dfsg-2 || =1:16.1.0~dfsg-3 || =1:16.1.0~dfsg-4 || =1:16.1.1~dfsg-1 || =1:16.10.0~dfsg-1 || =1:16.12.0~dfsg-1 || =1:16.15.0~dfsg-1 || =1:16.15.1~dfsg-1 || =1:16.16.1~dfsg+~2.10-1 || =1:16.16.1~dfsg+~2.10-2 || =1:16.16.1~dfsg-1 || =1:16.16.1~dfsg-1~bpo10+1 || =1:16.16.1~dfsg-2 || =1:16.16.1~dfsg-3 || =1:16.16.1~dfsg-4 || =1:16.2.0~dfsg-1 || =1:16.2.1~dfsg-1 || =1:16.2.1~dfsg-2 || =1:16.23.0~dfsg+~2.10-1 || =1:16.23.0~dfsg+~cs6.10.20220309-1 || =1:16.23.0~dfsg+~cs6.10.20220309-2 || =1:16.23.0~dfsg+~cs6.10.40431411-1 || =1:18.10.0~dfsg+~cs6.10.40431411-1 || =1:18.10.0~dfsg+~cs6.10.40431411-2 || =1:18.10.1~dfsg+~cs6.10.40431411-1 || =1:18.11.1~dfsg+~cs6.10.40431413-1 || =1:18.11.2~dfsg+~cs6.10.40431413-1 || =1:18.12.0~dfsg+~cs6.12.40431413-1 || =1:18.14.0~dfsg+~cs6.12.40431414-1 || =1:18.14.0~~rc1~dfsg+~cs6.12.40431414-1 || =1:18.9.0~dfsg+~cs6.10.40431411-1 || =1:20.0.0~dfsg+~cs6.12.40431414-1 || =1:20.0.0~dfsg+~cs6.12.40431414-2 || =1:20.0.0~~rc1~dfsg+~cs6.12.40431414-1 || =1:20.0.0~~rc2~dfsg+~cs6.12.40431414-1 || =1:20.0.1~dfsg+~cs6.12.40431414-1 || =1:20.1.0~dfsg+~cs6.12.40431414-1 || =1:20.1.0~~rc2~dfsg+~cs6.12.40431414-1 || =1:20.2.1~dfsg+~cs6.13.40431413-1 || =1:20.3.0~dfsg+~cs6.13.40431413-1 || =1:20.4.0~dfsg+~cs6.13.40431414-1 || =1:20.4.0~dfsg+~cs6.13.40431414-2 || =1:20.5.0~dfsg+~cs6.13.40431414-1 || >=0 <1:20.5.1~dfsg+~cs6.13.40431414-1 | 1:20.5.1~dfsg+~cs6.13.40431414-1 |