Strix
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CVE-2016-4554

UnknownEPSS 39.15%

Last modified

CVE-2016-4554 is a vulnerability of currently unknown severity. mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header smuggling" issue.. EPSS estimates a 39.15% chance of exploitation in the next 30 days.

Description

mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header smuggling" issue.

Metrics

EPSS Probability
39.15%

98.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OracleLinux6
OracleLinux7
Squid-CacheSquid<= 3.5.17
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux15.10
CanonicalUbuntu Linux16.04

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-4554?
mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header smuggling" issue.
How severe is CVE-2016-4554?
Severity scoring for CVE-2016-4554 is pending analysis. The EPSS model estimates a 39.15% probability of exploitation in the next 30 days.
How do I fix CVE-2016-4554?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-4554?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST