Multiple buffer overflows in Asterisk Open Source 1.4.x before 1.4.18.1 and 1.4.19-rc3, Open Source 1.6.x before 1.6.0-beta6, Business Edition C.x.x before C.1.6.1, AsteriskNOW 1.0.x before 1.0.2, Appliance Developer Kit before 1.4 revision 109386, and s800i 1.1.x before 1.1.0.2 allow remote attackers to (1) write a zero to an arbitrary memory location via a large RTP payload number, related to the ast_rtp_unset_m_type function in main/rtp.c; or (2) write certain integers to an arbitrary memory location via a large number of RTP payloads, related to the process_sdp function in channels/chan_sip.c.
| Software | From | Fixed in |
|---|---|---|
| asterisk / asterisknow | - | 1.0.1.x |
| asterisk / asterisk_appliance_developer_kit | 1.4 | 1.4.x |
| asterisk / s800i | - | 1.1.0.1.x |
| asterisk / asterisk_business_edition | - | c.1.0-beta8.x |
| asterisk / asterisk_business_edition | - | c.1.0beta7.x |
| asterisk / open_source | - | 1.4.18.x |
| asterisk / open_source | - | 1.4.19.x |
| asterisk / open_source | - | 1.6.0_beta5.x |