CVE-2019-18976
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Digium Asterisk
PublishedNov 22, 2019
First seenNov 22, 2019
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| digium asterisk | 13.0.0 ≤ v ≤ 13.29.1 | — |
| digium certified_asterisk | 13.21 | — |
| debian debian_linux | 9.0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.