VDB
ALPINE-CVE-2018-8778
ALPINE-CVE-2018-8778
PUBLISHED
CVSS 7.5 HIGH
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format (similar to format string vulnerabilities) can trigger a buffer under-read in the String#unpack method, resulting in a massive and controlled information disclosure.
Risk Scores
CVSS 3.0
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.6 | ruby | 2.2.0, 2.2.0, 0 |
| Alpine:v3.9 | ruby | 1.8.7, 1.8.7, 1.8.7 |
| Alpine:v3.10 | ruby | 1.9.3_p385-r0, 1.8.7, 1.8.7 |
| Alpine:v3.7 | ruby | 2.4.1-r3, 2.2.2-r0, * |
| Alpine:v3.19 | ruby | 2.0.0_p0-r0, 2.2.0, 2.2.0 |
| Alpine:v3.24 | ruby | 0, 2.2.0, 2.2.0 |
| Alpine:v3.21 | ruby | 0, 0, 0 |
| Alpine:v3.15 | ruby | *, 0, 1.8.7 |
| Alpine:v3.20 | ruby | 0, 0, 0 |
| Alpine:v3.8 | ruby | 2.3.3-r1, 2.3.3-r0, 2.3.2-r0 |
| Alpine:v3.22 | ruby | 0, 0, 0 |
| Alpine:v3.18 | ruby | 0, 1.8.7, 1.8.7 |
| Alpine:v3.16 | ruby | 1.8.7_p352-r1, 0, 1.8.7 |
| Alpine:v3.14 | ruby | 2.2.3-r1, 2.2.0, 0 |
| Alpine:v3.17 | ruby | 2.5.0-r0, 0, 1.8.7 |
| Alpine:v3.11 | ruby | 2.2.1-r0, 2.2.0, 2.2.0 |
| Alpine:v3.13 | ruby | 0, 2.4.1-r4, 2.4.1-r5 |
| Alpine:v3.5 | ruby | 1.8.7, 1.8.7, 1.8.7 |
| Alpine:v3.4 | ruby | 1.8.7_p174-r0, 0, 1.8.7 |
| Alpine:v3.23 | ruby | 0, 0, 0 |
…and 1 more
Timeline
- Apr 3, 2018 CVE Published
- Jul 8, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch