CVE-2021-21375CWE-400

Crash in receiving updated SDP answer after initial SDP negotiation failed

Medium · published March 10, 2021

CVSS v3.1
6.5
EPSS
2%
Percentile
81.4
In the wild
Unconfirmed
What it is

PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP version 2.10 and earlier, after an initial INVITE has been sent, when two 183 responses are received, with the first one causing negotiation failure, a crash will occur. This results in a denial of service.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.02080 · 81.4th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2021-03-10T22:30Z
EPSS history
Timeline
  • 10 MAR 22:30Z
    Crash in receiving updated SDP answer after initial SDP negotiation failed
    cvelistv5