CVE-2001-0183: High severity FreeBSD FreeBSD vulnerability

Published Mar 26, 2001
·
Updated

ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection.

Affected Software

11 affected components
FreeBSD FreeBSD=3.1
FreeBSD FreeBSD=3.5.1
FreeBSD FreeBSD=4.1
FreeBSD FreeBSD=3.0
FreeBSD FreeBSD=4.2
FreeBSD FreeBSD=3.3
FreeBSD FreeBSD=4.0
FreeBSD FreeBSD=4.1.1
FreeBSD FreeBSD=3.4
FreeBSD FreeBSD=3.5
FreeBSD FreeBSD=4.0-alpha

Event History

Mar 26, 2001
CVE Published
05:00 AM
May 7, 2001
CVE Published
via MITRE·08:00 AM
Data Sourced
via MITRE·08:00 AM
Description

Frequently Asked Questions

1

What is the severity of CVE-2001-0183?

CVE-2001-0183 is considered a medium severity vulnerability as it allows remote attackers to bypass access restrictions.

2

How do I fix CVE-2001-0183?

To mitigate CVE-2001-0183, update your FreeBSD installation to a version later than 4.2 that includes the patch for this vulnerability.

3

What systems are affected by CVE-2001-0183?

CVE-2001-0183 affects FreeBSD versions 4.2 and earlier, including versions 3.0 to 4.1.1.

4

What type of attack is CVE-2001-0183 associated with?

CVE-2001-0183 is associated with TCP packet manipulation where attackers can set the ECE flag to bypass firewall rules.

5

Can CVE-2001-0183 be exploited remotely?

Yes, CVE-2001-0183 can be exploited remotely by attackers to gain unauthorized access.

Contact

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