PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a cascading out-of-bounds heap read in pjsip_multipart_parse(). After boundary string matching, curptr is advanced past the delimiter without verifying it has not reached the buffer end.
This allows 1-2 bytes of adjacent heap memory to be read. All applications that process incoming SIP messages with multipart bodies or SDP content are potentially affected. This issue is resolved in version 2.17.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Pjsip Pjsip
cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:*
|
— |
2.17
|
References 2
https://github.com/pjsip/pjproject/security/advisories/GHSA-x5pq-qrp4-fmrj
https://github.com/pjsip/pjproject/security/advisories/GHSA-x5pq-qrp4-fmrj
https://github.com/pjsip/pjproject/commit/f0fa32a226df5f87a9903093e5d145ebb6973…
https://github.com/pjsip/pjproject/commit/f0fa32a226df5f87a9903093e5d145ebb69734db