CVE-2020-10108 Improper Input Validation in Twisted

What is CVE-2020-10108?

CVE-2020-10108 is a critical vulnerability in Canonical Ubuntu Linux, published on 12 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Twisted Web through 19.10.0, there was an HTTP request splitting vulnerability. When presented with two content-length headers, it ignored the first header. When the second content-length value was set to zero, the request body was interpreted as a pipelined request.

Weakness: CWE-444

Which versions are affected by CVE-2020-10108?

3 open source packages ship an affected version, including twisted and Twisted. It affects 6 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Oracle Solaris, Oracle Zfs Storage Appliance Kit, Twisted Twisted.

How do I fix CVE-2020-10108?

Upgrade twisted to a fixed version for your release line: 20.3.0 or 20.3.0rc1.

Is CVE-2020-10108 being exploited?

There is no known exploitation of CVE-2020-10108 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-6819, DEBIAN-CVE-2020-10108, GHSA-h96w-mmrf-2h6v, PYSEC-2020-259, RHSA-2020:1962, UBUNTU-CVE-2020-10108.