VulnerabilityModified
CVE-2021-33056
Belledonne Belle-sip before 4.5.20, as used in Linphone and other products, can crash via an invalid From header in a SIP message.
HIGH 7.5EPSS 1.29%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Belledonne Belle-sip before 4.5.20, as used in Linphone and other products, can crash via an invalid From header in a SIP message.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.29% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- linphone/belle-sip
- Source
- cve@mitre.org
References
- https://github.com/BelledonneCommunications/belle-sip/commit/116e3eb48fe43ea63eb9f3c4b4b30c48d58d6ff0Patch, Third Party Advisory
- https://github.com/BelledonneCommunications/belle-sip/compare/4.5.15...4.5.20Patch, Third Party Advisory
- https://github.com/BelledonneCommunications/belle-sip/commit/116e3eb48fe43ea63eb9f3c4b4b30c48d58d6ff0Patch, Third Party Advisory
- https://github.com/BelledonneCommunications/belle-sip/compare/4.5.15...4.5.20Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.