VulnerabilityModified
CVE-2006-1242
The ip_push_pending_frames function in Linux 2.4.x and 2.6.x before 2.6.16 increments the IP ID field when sending a RST after receiving unsolicited TCP SYN-ACK packets, which allows remote attackers to conduct an Idle Scan (nmap -sI) attack, which…
MEDIUM 5.0EPSS 3.51%
Does this matter?
Lower severity and a low EPSS score (3.51%). Track it; it rarely justifies an emergency change on its own.
Description
The ip_push_pending_frames function in Linux 2.4.x and 2.6.x before 2.6.16 increments the IP ID field when sending a RST after receiving unsolicited TCP SYN-ACK packets, which allows remote attackers to conduct an Idle Scan (nmap -sI) attack, which bypasses intended protections against such attacks.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 3.51% probability · 89th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://secunia.com/advisories/19402Patch, Vendor Advisory
- http://secunia.com/advisories/19955
- http://secunia.com/advisories/20157
- http://secunia.com/advisories/20398
- http://secunia.com/advisories/20671
- http://secunia.com/advisories/20914
- http://secunia.com/advisories/21136
- http://secunia.com/advisories/21465
- http://secunia.com/advisories/21983
- http://secunia.com/advisories/22417
- http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm
- http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
- http://www.debian.org/security/2006/dsa-1097
- http://www.debian.org/security/2006/dsa-1103
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.1
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:086
- http://www.novell.com/linux/security/advisories/2006-05-31.html
- http://www.redhat.com/support/errata/RHSA-2006-0437.html
- http://www.redhat.com/support/errata/RHSA-2006-0575.html
- http://www.securityfocus.com/archive/1/427622/100/0/threaded
- http://www.securityfocus.com/archive/1/427753/100/0/threaded
- http://www.securityfocus.com/archive/1/427893/100/0/threaded
- http://www.securityfocus.com/archive/1/428605/30/6210/threaded
- http://www.securityfocus.com/bid/17109
- http://www.vupen.com/english/advisories/2006/1140
- http://www.vupen.com/english/advisories/2006/2554
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10317
- https://usn.ubuntu.com/281-1/
- http://secunia.com/advisories/19402Patch, Vendor Advisory
- http://secunia.com/advisories/19955
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.