CVE-2023-0836
Last modified
CVE-2023-0836 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. EPSS estimates a 1.20% chance of exploitation in the next 30 days.
Description
An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. Sensitive data may be disclosed to configured FastCGI backends in an unexpected way.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Haproxy | Haproxy | >= 2.2.0, < 2.2.27 |
| Haproxy | Haproxy | >= 2.4.0, <= 2.4.21 |
| Haproxy | Haproxy | >= 2.5.0, <= 2.5.11 |
| Haproxy | Haproxy | >= 2.6.0, <= 2.6.8 |
| Haproxy | Haproxy | 2.1.0 |
| Haproxy | Haproxy | 2.3.0 |
| Haproxy | Haproxy | 2.7.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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