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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | <= 3.1.15 |
| Squid-Cache | Squid | 3.0 |
| Squid-Cache | Squid | 3.0.stable1 |
| Squid-Cache | Squid | 3.0.stable2 |
| Squid-Cache | Squid | 3.0.stable3 |
| Squid-Cache | Squid | 3.0.stable4 |
| Squid-Cache | Squid | 3.0.stable5 |
| Squid-Cache | Squid | 3.0.stable6 |
| Squid-Cache | Squid | 3.0.stable7 |
| Squid-Cache | Squid | 3.0.stable8 |
| Squid-Cache | Squid | 3.0.stable9 |
| Squid-Cache | Squid | 3.0.stable10 |
| Squid-Cache | Squid | 3.0.stable11 |
| Squid-Cache | Squid | 3.0.stable12 |
| Squid-Cache | Squid | 3.0.stable13 |
| Squid-Cache | Squid | 3.0.stable14 |
| Squid-Cache | Squid | 3.0.stable15 |
| Squid-Cache | Squid | 3.0.stable16 |
| Squid-Cache | Squid | 3.0.stable17 |
| Squid-Cache | Squid | 3.0.stable18 |
| Squid-Cache | Squid | 3.0.stable19 |
| Squid-Cache | Squid | 3.0.stable20 |
| Squid-Cache | Squid | 3.0.stable21 |
| Squid-Cache | Squid | 3.0.stable22 |
| Squid-Cache | Squid | 3.0.stable23 |
| Squid-Cache | Squid | 3.0.stable24 |
| Squid-Cache | Squid | 3.0.stable25 |
| Squid-Cache | Squid | 3.1 |
| Squid-Cache | Squid | 3.1.0.1 |
| Squid-Cache | Squid | 3.1.0.2 |
| Squid-Cache | Squid | 3.1.0.3 |
| Squid-Cache | Squid | 3.1.0.4 |
| Squid-Cache | Squid | 3.1.0.5 |
| Squid-Cache | Squid | 3.1.0.6 |
| Squid-Cache | Squid | 3.1.0.7 |
| Squid-Cache | Squid | 3.1.0.8 |
| Squid-Cache | Squid | 3.1.0.9 |
| Squid-Cache | Squid | 3.1.0.10 |
| Squid-Cache | Squid | 3.1.0.11 |
| Squid-Cache | Squid | 3.1.0.12 |
| Squid-Cache | Squid | 3.1.0.13 |
| Squid-Cache | Squid | 3.1.0.14 |
| Squid-Cache | Squid | 3.1.0.15 |
| Squid-Cache | Squid | 3.1.0.16 |
| Squid-Cache | Squid | 3.1.0.17 |
| Squid-Cache | Squid | 3.1.0.18 |
| Squid-Cache | Squid | 3.1.1 |
| Squid-Cache | Squid | 3.1.2 |
| Squid-Cache | Squid | 3.1.3 |
| Squid-Cache | Squid | 3.1.4 |
Showing 50 of 61 affected configurations. See NVD for the full list.
References
- http://secunia.com/advisories/46609Vendor Advisory
- http://secunia.com/advisories/46609Vendor Advisory
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2011-4096?
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Scan your code nowSource: NVD / NIST