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7de4774935
Fixes the following security vulnerabilities:
AST-2019-006: SIP request can change address of a SIP peer.
A SIP request can be sent to Asterisk that can change a SIP peer’s IP
address. A REGISTER does not need to occur, and calls can be hijacked as a
result. The only thing that needs to be known is the peer’s name;
authentication details such as passwords do not need to be known. This
vulnerability is only exploitable when the “nat” option is set to the
default, or “auto_force_rport”.
https://downloads.asterisk.org/pub/security/AST-2019-006.pdf
AST-2019-007: AMI user could execute system commands.
A remote authenticated Asterisk Manager Interface (AMI) user without
“system” authorization could use a specially crafted “Originate” AMI request
to execute arbitrary system commands.
https://downloads.asterisk.org/pub/security/AST-2019-007.pdf
AST-2019-008: Re-invite with T.38 and malformed SDP causes crash.
If Asterisk receives a re-invite initiating T.38 faxing and has a port of 0
and no c line in the SDP, a crash will occur.
https://downloads.asterisk.org/pub/security/AST-2019-008.pdf
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit b3aaa725f1)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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