OpenSIPS: Denial of Service in watcherinfo XML generation from oversized watcher URI
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| OpenSIPS | opensips | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||
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| Opensips | Opensips |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.637% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Opensips
Opensips opensips |
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| Vendors & Products |
Opensips
Opensips opensips |
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| Description | OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions prior to 3.6.6 and 4.0.0-rc1 contain a denial of service vulnerability in the watcherinfo generation functionality. An attacker can create an oversized watcher entry by sending a SUBSCRIBE Event: presence request with a long From URI, and then trigger presence.winfo watcherinfo XML generation for the same presentity. OpenSIPS copies the stored watcher URI into a fixed-size stack buffer, overflowing it and crashing the process. A remote attacker can crash an OpenSIPS worker in deployments that expose handle_subscribe() and allow watcherinfo (presence.winfo) generation. The issue is configuration-dependent because the presence and presence_xml modules must be loaded and SUBSCRIBE routing must be reachable. This issue has been fixed in versions 3.6.6 and 4.0.0-rc1. | |
| Title | OpenSIPS: Denial of Service in watcherinfo XML generation from oversized watcher URI | |
| Weaknesses | CWE-121 | |
| References |
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| Metrics |
cvssV4_0
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