CVE-2021-46837 (GCVE-0-2021-46837)
Vulnerability from cvelistv5
Published
2022-08-30 00:00
Modified
2024-08-04 05:17
Severity ?
CWE
  • n/a
Summary
res_pjsip_t38 in Sangoma Asterisk 16.x before 16.16.2, 17.x before 17.9.3, and 18.x before 18.2.2, and Certified Asterisk before 16.8-cert7, allows an attacker to trigger a crash by sending an m=image line and zero port in a response to a T.38 re-invite initiated by Asterisk. This is a re-occurrence of the CVE-2019-15297 symptoms but not for exactly the same reason. The crash occurs because there is an append operation relative to the active topology, but this should instead be a replace operation.
References
Impacted products
Vendor Product Version
n/a n/a Version: n/a
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