SB2019012213 - Input validation error in apache2 (Alpine package)
Published: January 22, 2019
Security Bulletin ID
SB2019012213
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2018-17189)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists due to an error when handling malicious input. A remote attacker can send a specially crafted request bodies in a slow loris way to plain resources and cause the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=9d23763439dabef4a81c7cc9c061b69048df9708
- https://git.alpinelinux.org/aports/commit/?id=1d9e0b6cf8ba241e0cc1da807a574470b5aab156
- https://git.alpinelinux.org/aports/commit/?id=86686eac58e8b2cd03eb04fdcdab2afdd4871e0c
- https://git.alpinelinux.org/aports/commit/?id=b49cc47cb0358234399a4dee1ad276828120df5b
- https://git.alpinelinux.org/aports/commit/?id=e82176fd8bf8ac0c0089a9b3daedcd2c52dafea3