VulnerabilityModified
CVE-2018-15503
The unpack implementation in Swoole version 4.0.4 lacks correct size checks in the deserialization process.
HIGH 7.5EPSS 2.27%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.27% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- swoole/swoole
- Source
- cve@mitre.org
References
- https://github.com/swoole/swoole-src/commit/4cdbce5d9bf2fe596bb6acd7d6611f9e8c253a76Patch, Vendor Advisory
- https://github.com/swoole/swoole-src/issues/1882Issue Tracking, Vendor Advisory
- https://x-c3ll.github.io/posts/swoole-deserialization-cve-2018-15503/Technical Description, Third Party Advisory
- https://github.com/swoole/swoole-src/commit/4cdbce5d9bf2fe596bb6acd7d6611f9e8c253a76Patch, Vendor Advisory
- https://github.com/swoole/swoole-src/issues/1882Issue Tracking, Vendor Advisory
- https://x-c3ll.github.io/posts/swoole-deserialization-cve-2018-15503/Technical Description, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.