SB2019092621 - Inconsistent interpretation of HTTP requests in go (Alpine package)
Published: September 26, 2019
Security Bulletin ID
SB2019092621
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2019-16276)
The vulnerability allows a remote attacker to perform HTTP request smuggling attack.
The vulnerability exists due to Go programming language accepts and normalizes HTTP requests with malformed HTTP/1.1 headers containing a space before the colon. A remote attacker can use a malformed request to bypass configured filtration and gain access to presumably restricted functionality.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=573b7537c7e1ab2732007a1d026a913613ca2d03
- https://git.alpinelinux.org/aports/commit/?id=17caf1ca31bcf51f92d7f466d287824869ec3f25
- https://git.alpinelinux.org/aports/commit/?id=971e4b11222464f77b1bb47c32f4f1c83cd89d86
- https://git.alpinelinux.org/aports/commit/?id=2aa8f8a3facf89896330b6847713de7d92b4196a
- https://git.alpinelinux.org/aports/commit/?id=c94518133ecb5493567729db077404b563149189