Ubuntu update for nginx



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-20372
CWE-ID CWE-444
Exploitation vector Network
Public exploit N/A
Vulnerable software
 nginx (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU24230

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-20372

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists with certain error_page configurations. A remote attacker can read unauthorized web pages in environments where NGINX is being fronted by a load balancer.

Mitigation

Update the affected packages.

Ubuntu 19.10
nginx-common - 1.16.1-0ubuntu2.1
nginx-core - 1.16.1-0ubuntu2.1
nginx-extras - 1.16.1-0ubuntu2.1
nginx-full - 1.16.1-0ubuntu2.1
nginx-light - 1.16.1-0ubuntu2.1
Ubuntu 19.04
nginx-common - 1.15.9-0ubuntu1.2
nginx-core - 1.15.9-0ubuntu1.2
nginx-extras - 1.15.9-0ubuntu1.2
nginx-full - 1.15.9-0ubuntu1.2
nginx-light - 1.15.9-0ubuntu1.2
Ubuntu 18.04 LTS
nginx-common - 1.14.0-0ubuntu1.7
nginx-core - 1.14.0-0ubuntu1.7
nginx-extras - 1.14.0-0ubuntu1.7
nginx-full - 1.14.0-0ubuntu1.7
nginx-light - 1.14.0-0ubuntu1.7
Ubuntu 16.04 LTS
nginx-common - 1.10.3-0ubuntu0.16.04.5
nginx-core - 1.10.3-0ubuntu0.16.04.5
nginx-extras - 1.10.3-0ubuntu0.16.04.5
nginx-full - 1.10.3-0ubuntu0.16.04.5
nginx-light - 1.10.3-0ubuntu0.16.04.5

Vulnerable software versions

nginx (Ubuntu package): 1.10.3-0ubuntu0.16.04.1 - 1.15.9-0ubuntu1.1

CPE2.3 External links

https://usn.ubuntu.com/4235-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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