Deserialization in Swoole
CVE-2018-15503
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Swoole — versions 4.0.4
Weakness classification (CWE)
References
- github.com/swoole/swoole-src/issues/1882 (Issue Tracking, Vendor Advisory)
- github.com/swoole/swoole-src/commit/4cdbce5d9bf2fe596bb6acd7d6611f9e8c253a76 (Patch, Vendor Advisory)
- x-c3ll.github.io/posts/swoole-deserialization-cve-2018-15503/ (Technical Description, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-15503?
- CVE-2018-15503 is a high-severity vulnerability in Swoole, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2018-08-18.
- How severe is CVE-2018-15503?
- High severity. CVSS v3 base score is 7.5 out of 10.