SB2019040240 - Resource management error in apache2 (Alpine package)
Published: April 2, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2019-0197)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error within the mod_http2 module when processing update requests from http/1.1 to http/2, if this was not the first request on a connection. A remote attacker can send specially crafted requests to the affected server and perform denial of service attack.
Successful exploitation of the vulnerability requires that HTTP/2 protocol is enabled for a "http:" host or H2Upgrade is enabled for h2 on a "https:" host.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=2352aedda7b946046e3bb408f94d6053f6468d74
- https://git.alpinelinux.org/aports/commit/?id=f69ef91711a9edd270c57081b8cd8230ad8fed24
- https://git.alpinelinux.org/aports/commit/?id=0342bb148db2b28dcced8a4c5b8e2840f3af9a44
- https://git.alpinelinux.org/aports/commit/?id=9d23763439dabef4a81c7cc9c061b69048df9708
- https://git.alpinelinux.org/aports/commit/?id=bbf41c02f848c8e5967bd857c6988274dc55f068
- https://git.alpinelinux.org/aports/commit/?id=ef86fbabe1c2c14cf06d8c26c6141b650e92049d