Red Hat Enterprise Linux 8 update for the varnish:6 module



Published: 2022-11-28
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-45060
CWE-ID CWE-918
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Red Hat Enterprise Linux for ARM 64
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Power, little endian
Operating systems & Components / Operating system

Red Hat Enterprise Linux for IBM z Systems
Operating systems & Components / Operating system

Red Hat Enterprise Linux for x86_64
Operating systems & Components / Operating system

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU69128

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-45060

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input when handling HTTP/2 requests. A remote attacker can introduce characters through the HTTP/2 pseudo-headers that are invalid in the context of an HTTP/1 request line, causing the Varnish server to produce invalid HTTP/1 requests to the backend.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for ARM 64: 8

Red Hat Enterprise Linux for Power, little endian: 8

Red Hat Enterprise Linux for IBM z Systems: 8

Red Hat Enterprise Linux for x86_64: 8.0


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:8649

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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