CVE-2021-43845
High
Description
PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size.
SeverityHigh
CVSS8.2
Exploit probability—
Product
Teluu Pjsip
PublishedDec 27, 2021
First seenDec 27, 2021
Weakness typeCWE-125Out-of-bounds read
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| teluu pjsip | v ≤ 2.11.1 | — |
| debian debian_linux | 9.0, 10.0, 11.0 | — |
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