SB2019061006 - Input validation error in Twisted Web
Published: June 10, 2019 Updated: July 17, 2020
Security Bulletin ID
SB2019061006
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) Input validation error (CVE-ID: CVE-2019-12387)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.
Remediation
Install update from vendor's website.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00030.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00042.html
- https://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2
- https://labs.twistedmatrix.com/2019/06/twisted-1921-released.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/
- https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.html
- https://usn.ubuntu.com/4308-1/
- https://usn.ubuntu.com/4308-2/
- https://www.oracle.com/security-alerts/cpuapr2020.html