MEDIUM
security flaw
Published Mar 15, 2006
5.0
MEDIUMCVSS 2.0
EPSS 3.51%
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.
Affected products
No data.
OR
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.0
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.4.5
- 2.4.6
- 2.4.7
- 2.4.8
- 2.4.9
- 2.4.10
- 2.4.11
- 2.4.12
- 2.4.13
- 2.4.14
- 2.4.15
- 2.4.16
- 2.4.17
- 2.4.18
- 2.4.18
- 2.4.18
- 2.4.18
- 2.4.18
- 2.4.18
- 2.4.18
- 2.4.18
- 2.4.18
- 2.4.18
- 2.4.19
- 2.4.19
- 2.4.19
- 2.4.19
- 2.4.19
- 2.4.19
- 2.4.19
- 2.4.20
- 2.4.21
- 2.4.21
- 2.4.21
- 2.4.21
- 2.4.22
- 2.4.23
- 2.4.23
- 2.4.23_ow2
- 2.4.24
- 2.4.24_ow1
- 2.4.25
- 2.4.26
- 2.4.27
- 2.4.27
- 2.4.27
- 2.4.27
- 2.4.27
- 2.4.27
- 2.4.28
- 2.4.29
- 2.4.29
- 2.4.29
- 2.4.30
- 2.4.30
- 2.4.30
- 2.4.31
- 2.4.31
- 2.4.32
- 2.4.32
- 2.4.32
- 2.4.33
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.1
- 2.6.1
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.6.5
- 2.6.6
- 2.6.6
- 2.6.7
- 2.6.7
- 2.6.8
- 2.6.8
- 2.6.8
- 2.6.8
- 2.6.9
- 2.6.10
- 2.6.10
- 2.6.11
- 2.6.11
- 2.6.11
- 2.6.11
- 2.6.11.5
- 2.6.11.6
- 2.6.11.7
- 2.6.11.8
- 2.6.11.11
- 2.6.11.12
- 2.6.12
- 2.6.12
- 2.6.12
- 2.6.12.1
- 2.6.12.2
- 2.6.12.3
- 2.6.12.4
- 2.6.12.5
- 2.6.12.6
- 2.6.13
- 2.6.13
- 2.6.13
- 2.6.13
- 2.6.13
- 2.6.13.1
- 2.6.13.2
- 2.6.13.3
- 2.6.13.4
- 2.6.14
- 2.6.14
- 2.6.14
- 2.6.14
- 2.6.14
- 2.6.14.1
- 2.6.14.2
- 2.6.14.3
- 2.6.14.4
- 2.6.14.5
- 2.6.15
- 2.6.15
- 2.6.15
- 2.6.15.1
- 2.6.15.2
- 2.6.15.3
- 2.6.15.4
- 2.6.15.5
- 2.6_test9_cvs
No data.
Red Hat Enterprise Linux 3
kernel-0:2.4.21-47.EL
Fixed · RHSA-2006:0437
Red Hat Enterprise Linux 4
kernel-0:2.6.9-42.EL
Fixed · RHSA-2006:0575
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | kernel-0:2.4.21-47.EL | Fixed | RHSA-2006:0437 |
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-42.EL | Fixed | RHSA-2006:0575 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.51% 0.03507
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
EPSS probability 0.03507
Score over time
2022-2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 3.51% (0.03507) | 88.82th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.43% (0.03426) | 87.34th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.93% (0.02929) | 85.20th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.01% (0.04013) | 80.46th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.93% (0.02929) | 85.50th | v4 (v2025.03.14) |
| Feb 19, 2025 | 2.19% (0.02185) | 89.27th | v3 (v2023.03.01) |
| Dec 17, 2024 | 3.88% (0.03883) | 91.84th | v3 (v2023.03.01) |
| Jul 4, 2024 | 1.65% (0.01650) | 87.68th | v3 (v2023.03.01) |
| Feb 3, 2024 | 3.18% (0.03183) | 90.22th | v3 (v2023.03.01) |
| Nov 19, 2023 | 2.86% (0.02858) | 89.65th | v3 (v2023.03.01) |
| Aug 8, 2023 | 2.83% (0.02830) | 89.31th | v3 (v2023.03.01) |
| Jun 19, 2023 | 2.80% (0.02797) | 89.16th | v3 (v2023.03.01) |
| May 11, 2023 | 2.43% (0.02429) | 88.36th | v3 (v2023.03.01) |
| Apr 3, 2023 | 2.49% (0.02488) | 88.44th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.04% (0.02042) | 87.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (32)
- http://secunia.com/advisories/19402 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://secunia.com/advisories/19955 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20157 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20398 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20671 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20914 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21136 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21465 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21983 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22417 third-party-advisoryx_refsource_SECUNIA
- http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm x_refsource_CONFIRM
- http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm x_refsource_CONFIRM
- http://www.debian.org/security/2006/dsa-1097 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2006/dsa-1103 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.1 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:086 vendor-advisoryx_refsource_MANDRIVA
- http://www.novell.com/linux/security/advisories/2006-05-31.html vendor-advisoryx_refsource_SUSE
- http://www.redhat.com/support/errata/RHSA-2006-0437.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2006-0575.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/427622/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/427753/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/427893/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/428605/30/6210/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/17109 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2006/1140 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2006/2554 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2006-1242 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1618031 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2006-1242
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10317 vdb-entrysignaturex_refsource_OVAL
- https://usn.ubuntu.com/281-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2006-1242
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 15, 2006
Updated Aug 7, 2024
Reserved Mar 15, 2006
Link CVE-2006-1242
CISA Vulnrichment
Updated n/a