CVE-2015-2156 Information Exposure in Netty

What is CVE-2015-2156?

CVE-2015-2156 is a high-severity vulnerability in Netty Netty, published on 18 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Netty before 3.9.8.Final, 3.10.x before 3.10.3.Final, 4.0.x before 4.0.28.Final, and 4.1.x before 4.1.0.Beta5 and Play Framework 2.x before 2.3.9 might allow remote attackers to bypass the httpOnly flag on cookies and obtain sensitive information by leveraging improper validation of cookie name and value characters.

Weakness: CWE-20

Which versions are affected by CVE-2015-2156?

10 open source packages ship an affected version, including io.netty:netty, io.netty:netty-parent and org.jboss.netty:netty. It affects 3 products.

Products include Lightbend Play Framework, Netty Netty, Playframework Play Framework.

How do I fix CVE-2015-2156?

Upgrade io.netty:netty to a fixed version for your release line: 3.9.8.Final or 3.10.3.Final.

Is CVE-2015-2156 being exploited?

There is no known exploitation of CVE-2015-2156 in the wild and no public exploit code.

Other vulnerabilities in Netty Netty

• CVE-2014-3630 XML external entity in n/a Critical 9.8
• CVE-2022-31018 Denial of service binding form from JSON in Play Framework High 7.5
• CVE-2020-26882 Data Amplification in Play Framework High 7.5
• CVE-2020-26883 Uncontrolled Recursion in Play Framework High 7.5
• CVE-2020-27196 Out-of-bounds Write in Play Framework High 7.5

All Netty Netty vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2015-2156, GHSA-xfv3-rrfm-f2rv, UBUNTU-CVE-2015-2156.