7.5

CVE-2019-18976

An issue was discovered in res_pjsip_t38.c in Sangoma Asterisk through 13.x and Certified Asterisk through 13.21-x. If it receives a re-invite initiating T.38 faxing and has a port of 0 and no c line in the SDP, a NULL pointer dereference and crash will occur. This is different from CVE-2019-18940.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Digium ≫ Asterisk Version >= 13.0.0 <= 13.29.1
Digium ≫ Certified Asterisk Version 13.21
Digium ≫ Certified Asterisk Version 13.21 Update cert1
Digium ≫ Certified Asterisk Version 13.21 Update cert2
Digium ≫ Certified Asterisk Version 13.21 Update cert3
Digium ≫ Certified Asterisk Version 13.21 Update cert4
Debian ≫ Debian Linux Version 9.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 6.68% 0.93
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html
Third Party Advisory
Mailing List
https://www.asterisk.org/downloads/security-advisories
Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2019-008.html
Vendor Advisory
https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html
Third Party Advisory
VDB Entry
https://seclists.org/fulldisclosure/2019/Nov/20
Third Party Advisory
Mailing List
https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1
Third Party Advisory