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...
5.0 Medium
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.
Exploit likelihood
3.54%Down 0.8 points since Feb 4, 2022
What each source reports
NVD Score used
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.
- Record
CVE-2006-1242- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2006-1242- Updated
- 2026-11-02
EUVDEUVD-2006-1246 No score
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.
- Record
EUVD-2006-1246- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mrff-qcv2-jwq3 No score
The ip_push_pending_frames function in Linux 2.4.x and 2.6.x before 2.6.16 increments the IP ID...
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.
- Record
GHSA-mrff-qcv2-jwq3- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
kernel-source-2.4.27Debian:3.1 From an advisory covering 16 CVEs |
before 2.4.27-10sarge3, plus listed versions 2.4.27-102.4.27-10sarge12.4.27-10sarge2 |
2.4.27-10sarge3 |
kernel-source-2.6.8Debian:3.1 From an advisory covering 24 CVEs |
before 2.6.8-16sarge3, plus listed versions 2.6.8-162.6.8-16sarge12.6.8-16sarge2 |
2.6.8-16sarge3 |
kernelRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-BOOTRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-debuginfoRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-docRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-hugememRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-hugemem-unsupportedRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-smpRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-smp-unsupportedRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
Show 72 moreShow less
| Package | Affected | Fixed |
|---|---|---|
kernel-sourceRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-unsupportedRed Hat:enterprise_linux:3::as From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernelRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-BOOTRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-debuginfoRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-docRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-hugememRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-hugemem-unsupportedRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-smpRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-smp-unsupportedRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-sourceRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-unsupportedRed Hat:enterprise_linux:3::desktop From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernelRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-BOOTRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-debuginfoRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-docRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-hugememRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-hugemem-unsupportedRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-smpRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-smp-unsupportedRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-sourceRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-unsupportedRed Hat:enterprise_linux:3::es From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernelRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-BOOTRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-debuginfoRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-docRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-hugememRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-hugemem-unsupportedRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-smpRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-smp-unsupportedRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-sourceRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernel-unsupportedRed Hat:enterprise_linux:3::ws From an advisory covering 9 CVEs |
before 0:2.4.21-47.EL | 0:2.4.21-47.EL |
kernelRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-debuginfoRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-develRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-docRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-hugememRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-hugemem-develRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-largesmpRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-largesmp-develRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-smpRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-smp-develRed Hat:enterprise_linux:4::as From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernelRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-debuginfoRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-develRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-docRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-hugememRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-hugemem-develRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-largesmpRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-largesmp-develRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-smpRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-smp-develRed Hat:enterprise_linux:4::desktop From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernelRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-debuginfoRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-develRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-docRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-hugememRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-hugemem-develRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-largesmpRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-largesmp-develRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-smpRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-smp-develRed Hat:enterprise_linux:4::es From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernelRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-debuginfoRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-develRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-docRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-hugememRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-hugemem-develRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-largesmpRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-largesmp-develRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-smpRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
kernel-smp-develRed Hat:enterprise_linux:4::ws From an advisory covering 15 CVEs |
before 0:2.6.9-42.EL | 0:2.6.9-42.EL |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-1242 is a medium vulnerability (CVSS 5.0) in Linux Kernel, published March 15, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.54%, the 89th percentile. No source names a fixed version.
References
redhat.com/support/errata/RHSA-2006-0437.html
vupen.com/english/advisories/2006/2554
kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.1
securityfocus.com/archive/1/427753/100/0/threaded
usn.ubuntu.com/281-1
secunia.com/advisories/21136
Show 194 moreShow less
debian.org/security/2006/dsa-1097
novell.com/linux/security/advisories/2006-05-31.html
support.avaya.com/elmodocs2/security/ASA-2006-180.htm
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10317
mandriva.com/security/advisories?name=MDKSA-2006:086
nvd.nist.gov/vuln/detail/CVE-2006-1242
github.com/advisories/GHSA-mrff-qcv2-jwq3
access.redhat.com/errata/RHSA-2006:0437
bugzilla.redhat.com/show_bug.cgi?id=97000
security.access.redhat.com/data/csaf/v2/advisories/2006/rhsa-2006_0437.json
cve.org/CVERecord?id=CVE-2005-3055
This page doesn't list everything
Left out here: 111 references. The JSON record has them.