🛡️ USN-5474-1 — varnish

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

varnish vulnerabilities

It was dicovered that Varnish Cache did not clear a pointer between the

handling of one client request and the next request within the same connection.

A remote attacker could possibly use this issue to obtain sensitive

information. (CVE-2019-20637)

It was discovered that Varnish Cache could have an assertion failure when a

TLS termination proxy uses PROXY version 2. A remote attacker could possibly

use this issue to restart the daemon and cause a performance loss.

(CVE-2020-11653)

It was discovered that Varnish Cache allowed request smuggling and VCL

authorization bypass via a large Content-Length header for a POST

request. A remote attacker could possibly use this issue to obtain sensitive

information. (CVE-2021-36740)

It was discovered that Varnish Cache allowed request smuggling for HTTP/1

connections. A remote attacker could possibly use this issue to obtain

sensitive information. (CVE-2022-23959)

Affected software

USN-5474-1 is recorded against 1 package.

  • varnish (fixed in 6.6.1-1ubuntu0.2)

Timeline and source

Published on 8 June 2022 and last revised on 27 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-06-08
Updated 2026-08-12
Modified 2026-04-27
Fix URL N/A

Affected Packages

Software From version Fixed in
varnish — 6.6.1-1ubuntu0.2

Similar Threats

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