Strix
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CVE-2011-4096

UnknownEPSS 38.32%

Last modified

CVE-2011-4096 is a vulnerability of currently unknown severity. The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record.. EPSS estimates a 38.32% chance of exploitation in the next 30 days.

Description

The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record.

Metrics

EPSS Probability
38.32%

98.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Squid-CacheSquid<= 3.1.15
Squid-CacheSquid3.0
Squid-CacheSquid3.0.stable1
Squid-CacheSquid3.0.stable2
Squid-CacheSquid3.0.stable3
Squid-CacheSquid3.0.stable4
Squid-CacheSquid3.0.stable5
Squid-CacheSquid3.0.stable6
Squid-CacheSquid3.0.stable7
Squid-CacheSquid3.0.stable8
Squid-CacheSquid3.0.stable9
Squid-CacheSquid3.0.stable10
Squid-CacheSquid3.0.stable11
Squid-CacheSquid3.0.stable12
Squid-CacheSquid3.0.stable13
Squid-CacheSquid3.0.stable14
Squid-CacheSquid3.0.stable15
Squid-CacheSquid3.0.stable16
Squid-CacheSquid3.0.stable17
Squid-CacheSquid3.0.stable18
Squid-CacheSquid3.0.stable19
Squid-CacheSquid3.0.stable20
Squid-CacheSquid3.0.stable21
Squid-CacheSquid3.0.stable22
Squid-CacheSquid3.0.stable23
Squid-CacheSquid3.0.stable24
Squid-CacheSquid3.0.stable25
Squid-CacheSquid3.1
Squid-CacheSquid3.1.0.1
Squid-CacheSquid3.1.0.2
Squid-CacheSquid3.1.0.3
Squid-CacheSquid3.1.0.4
Squid-CacheSquid3.1.0.5
Squid-CacheSquid3.1.0.6
Squid-CacheSquid3.1.0.7
Squid-CacheSquid3.1.0.8
Squid-CacheSquid3.1.0.9
Squid-CacheSquid3.1.0.10
Squid-CacheSquid3.1.0.11
Squid-CacheSquid3.1.0.12
Squid-CacheSquid3.1.0.13
Squid-CacheSquid3.1.0.14
Squid-CacheSquid3.1.0.15
Squid-CacheSquid3.1.0.16
Squid-CacheSquid3.1.0.17
Squid-CacheSquid3.1.0.18
Squid-CacheSquid3.1.1
Squid-CacheSquid3.1.2
Squid-CacheSquid3.1.3
Squid-CacheSquid3.1.4

Showing 50 of 61 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-4096?
The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record.
How severe is CVE-2011-4096?
Severity scoring for CVE-2011-4096 is pending analysis. The EPSS model estimates a 38.32% probability of exploitation in the next 30 days.
How do I fix CVE-2011-4096?
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-2011-4096?

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

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Source: NVD / NIST