What is the severity of CVE-2011-0520?

CVE-2011-0520 is classified as a denial of service vulnerability that may also allow remote code execution.

How do I fix CVE-2011-0520?

To fix CVE-2011-0520, upgrade MaraDNS to the latest version that contains patches for this vulnerability.

What versions of MaraDNS are affected by CVE-2011-0520?

MaraDNS versions 1.4.03 and 1.4.05 are affected by CVE-2011-0520.

Can CVE-2011-0520 lead to remote code execution?

Yes, CVE-2011-0520 can potentially allow remote attackers to execute arbitrary code due to a segmentation fault.

What exploitability concerns are associated with CVE-2011-0520?

CVE-2011-0520 poses concerns for service availability and potential unauthorized access through code execution.

Vulnerability/
CVE-2011-0520

high

7.5

CWE

119

28/1/2011

6/8/2024

CVE-2011-0520: Buffer Overflow

First published: Fri Jan 28 2011(Updated: )

The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long DNS hostname with a large number of labels, which triggers a heap-based buffer overflow.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
MaraDNS	=1.4.03
MaraDNS	=1.4.05

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2011-0520?
CVE-2011-0520 is classified as a denial of service vulnerability that may also allow remote code execution.
How do I fix CVE-2011-0520?
To fix CVE-2011-0520, upgrade MaraDNS to the latest version that contains patches for this vulnerability.
What versions of MaraDNS are affected by CVE-2011-0520?
MaraDNS versions 1.4.03 and 1.4.05 are affected by CVE-2011-0520.
Can CVE-2011-0520 lead to remote code execution?
Yes, CVE-2011-0520 can potentially allow remote attackers to execute arbitrary code due to a segmentation fault.
What exploitability concerns are associated with CVE-2011-0520?
CVE-2011-0520 poses concerns for service availability and potential unauthorized access through code execution.

agent/references
agent/type
collector/mitre-cve
source/MITRE
agent/severity
agent/author
agent/last-modified-date
agent/first-publish-date
agent/description
agent/event
agent/source
agent/weakness
agent/tags
agent/softwarecombine
collector/nvd-index
agent/software-canonical-lookup-request
collector/nvd-historical
vendor/maradns
canonical/maradns
version/maradns/1.4.03
version/maradns/1.4.05

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.

Frequently Asked Questions

What is the severity of CVE-2011-0520?
CVE-2011-0520 is classified as a denial of service vulnerability that may also allow remote code execution.
How do I fix CVE-2011-0520?
To fix CVE-2011-0520, upgrade MaraDNS to the latest version that contains patches for this vulnerability.
What versions of MaraDNS are affected by CVE-2011-0520?
MaraDNS versions 1.4.03 and 1.4.05 are affected by CVE-2011-0520.
Can CVE-2011-0520 lead to remote code execution?
Yes, CVE-2011-0520 can potentially allow remote attackers to execute arbitrary code due to a segmentation fault.
What exploitability concerns are associated with CVE-2011-0520?
CVE-2011-0520 poses concerns for service availability and potential unauthorized access through code execution.