What is the severity of CVE-2001-1155?

CVE-2001-1155 has a medium severity rating due to the potential for unauthorized access caused by DNS spoofing.

How do I fix CVE-2001-1155?

To fix CVE-2001-1155, consider disabling the PARANOID ACL option or upgrading to a non-vulnerable version of FreeBSD.

Which versions of FreeBSD are affected by CVE-2001-1155?

FreeBSD versions 4.1.1 through 4.3 are affected by CVE-2001-1155.

What is the risk of exploiting CVE-2001-1155?

Exploiting CVE-2001-1155 allows remote attackers to bypass access restrictions, potentially leading to unauthorized actions on the system.

Is CVE-2001-1155 a type of denial-of-service vulnerability?

No, CVE-2001-1155 is not a denial-of-service vulnerability; it primarily involves unauthorized access via DNS spoofing.

Vulnerability/
CVE-2001-1155

critical

9.8

CWE

NVD-CWE-Other 863

23/8/2001

25/6/2002

8/8/2024

CVE-2001-1155

First published: Thu Aug 23 2001(Updated: )

TCP Wrappers (tcp_wrappers) in FreeBSD 4.1.1 through 4.3 with the PARANOID ACL option enabled does not properly check the result of a reverse DNS lookup, which could allow remote attackers to bypass intended access restrictions via DNS spoofing.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
FreeBSD Kernel	>=4.1.1<=4.3
FreeBSD Kernel	=4.2
FreeBSD Kernel	=4.1.1
FreeBSD Kernel	=4.3

Remedy

ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:56.tcp_wrappers.asc

Never miss a vulnerability like this again

Reference Links

http://www.osvdb.org/5454

Frequently Asked Questions

What is the severity of CVE-2001-1155?
CVE-2001-1155 has a medium severity rating due to the potential for unauthorized access caused by DNS spoofing.
How do I fix CVE-2001-1155?
To fix CVE-2001-1155, consider disabling the PARANOID ACL option or upgrading to a non-vulnerable version of FreeBSD.
Which versions of FreeBSD are affected by CVE-2001-1155?
FreeBSD versions 4.1.1 through 4.3 are affected by CVE-2001-1155.
What is the risk of exploiting CVE-2001-1155?
Exploiting CVE-2001-1155 allows remote attackers to bypass access restrictions, potentially leading to unauthorized actions on the system.
Is CVE-2001-1155 a type of denial-of-service vulnerability?
No, CVE-2001-1155 is not a denial-of-service vulnerability; it primarily involves unauthorized access via DNS spoofing.

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collector/nvd-api
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agent/software-canonical-lookup
agent/software-canonical-lookup-request
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vendor/freebsd
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version/freebsd kernel/4.1.1
version/freebsd kernel/4.3
version/freebsd kernel/4.2

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