CVE-2021-26712

Summary

CVECVE-2021-26712
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-18 21:15:00 UTC
Updated2021-02-24 17:14:00 UTC
DescriptionIncorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Digium Asterisk All All All All
Application Digium Asterisk All All All All
Application Digium Asterisk All All All All
Application Digium Certified Asterisk 16.8 - All All
Application Digium Certified Asterisk 16.8 cert1-rc1 All All
Application Digium Certified Asterisk 16.8 cert1-rc2 All All
Application Digium Certified Asterisk 16.8 cert1-rc3 All All
Application Digium Certified Asterisk 16.8 cert1-rc4 All All
Application Digium Certified Asterisk 16.8 cert2 All All
Application Digium Certified Asterisk 16.8 cert3 All All
Application Digium Certified Asterisk 16.8 cert4 All All
Application Digium Certified Asterisk 16.8 cert4-rc1 All All
Application Digium Certified Asterisk 16.8 cert4-rc2 All All
Application Digium Certified Asterisk 16.8 cert4-rc3 All All
Application Digium Certified Asterisk 16.8 cert4-rc4 All All
Application Digium Certified Asterisk 16.8 cert5 All All
Application Digium Certified Asterisk 16.8 - All All
Application Digium Certified Asterisk 16.8 cert1-rc1 All All
Application Digium Certified Asterisk 16.8 cert1-rc2 All All
Application Digium Certified Asterisk 16.8 cert1-rc3 All All
Application Digium Certified Asterisk 16.8 cert1-rc4 All All
Application Digium Certified Asterisk 16.8 cert2 All All
Application Digium Certified Asterisk 16.8 cert3 All All
Application Digium Certified Asterisk 16.8 cert4 All All
Application Digium Certified Asterisk 16.8 cert4-rc1 All All
Application Digium Certified Asterisk 16.8 cert4-rc2 All All
Application Digium Certified Asterisk 16.8 cert4-rc3 All All
Application Digium Certified Asterisk 16.8 cert4-rc4 All All
Application Digium Certified Asterisk 16.8 cert5 All All

References

ReferenceSourceLinkTags
AST-2021-003 CONFIRM downloads.asterisk.org Vendor Advisory
Index of /pub/security MISC downloads.asterisk.org Vendor Advisory
[ASTERISK-29260] sRTP Replay Protection ignored; even tears down long calls - Digium/Asterisk JIRA CONFIRM issues.asterisk.org Issue Tracking, Patch, Vendor Advisory
Asterisk Project Security Advisory - AST-2021-003 ≈ Packet Storm MISC packetstormsecurity.com Third Party Advisory
Full Disclosure: AST-2021-003: Remote attacker could prematurely tear down SRTP calls FULLDISC seclists.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500035 Alpine Linux Security Update for asterisk
  • 501378 Alpine Linux Security Update for asterisk
  • 503868 Alpine Linux Security Update for asterisk
  • 690412 Free Berkeley Software Distribution (FreeBSD) Security Update for asterisk (5d8ef725-7228-11eb-8386-001999f8d30b)
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