Vulnerability CVE-2018-15503
Published: 2018-08-17   Modified: 2018-08-18

Description:
The unpack implementation in Swoole version 4.0.4 lacks correct size checks in the deserialization process. An attacker can craft a serialized object to exploit this vulnerability and cause a SEGV.

Type:

CWE-502

 (Deserialization of Untrusted Data)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Swoole project -> Swoole 
Swoole -> Swoole 

 References:
https://github.com/swoole/swoole-src/commit/4cdbce5d9bf2fe596bb6acd7d6611f9e8c253a76
https://github.com/swoole/swoole-src/issues/1882
https://x-c3ll.github.io/posts/swoole-deserialization-cve-2018-15503/
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