NULL pointer dereference in Asterisk Certified_asterisk
CVE-2021-46837
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…
EPSS: 0.018 (76.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Asterisk Certified_asterisk — versions 16.8.0
- Digium Asterisk
- Debian Debian_linux — versions 9.0, 10.0, 11.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-46837?
- CVE-2021-46837 is a medium-severity vulnerability in Asterisk Certified_asterisk, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2022-08-30.
- How severe is CVE-2021-46837?
- Medium severity. CVSS v3 base score is 6.5 out of 10.