| Package | Affected versions | Patched versions |
|---|---|---|
| asterisk | = 12.0.0= 12.1.0= 12.1.1= 12.2.0= 12.3.0≤ 12.3.0 |
The PJSIP Channel Driver in Asterisk Open Source before 12.3.1 allows remote attackers to cause a denial of service (deadlock) by terminating a subscription request before it is complete, which triggers a SIP transaction timeout.
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