HIGH
The tcp_sacktag_write_queue function in net/ipv4/tcp_input.c in Linux kernel 2.6.21 through 2.6.23.7, and 2.6.24-rc through 2.6.24-rc2, allows remote attackers to cause a denial of service (crash) via crafted ACK responses that trigger a NULL pointer dereference
Published Nov 15, 2007
7.8
HIGHCVSS 2.0
EPSS 3.82%
Description
The tcp_sacktag_write_queue function in net/ipv4/tcp_input.c in Linux kernel 2.6.21 through 2.6.23.7, and 2.6.24-rc through 2.6.24-rc2, allows remote attackers to cause a denial of service (crash) via crafted ACK responses that trigger a NULL pointer dereference.
Affected products
No data.
OR
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21.1
- 2.6.21.2
- 2.6.21.3
- 2.6.21.4
- 2.6.21.5
- 2.6.21.6
- 2.6.21.7
- 2.6.22
- 2.6.22
- 2.6.22
- 2.6.22
- 2.6.22
- 2.6.22
- 2.6.22
- 2.6.22
- 2.6.22.1
- 2.6.22.2
- 2.6.22.3
- 2.6.22.4
- 2.6.22.5
- 2.6.22.6
- 2.6.22.7
- 2.6.22.8
- 2.6.22.9
- 2.6.22.10
- 2.6.22.11
- 2.6.22.12
- 2.6.22.13
- 2.6.22.14
- 2.6.22.15
- 2.6.22.16
- 2.6.22.17
- 2.6.22.18
- 2.6.22.19
- 2.6.22.20
- 2.6.22.21
- 2.6.22.22
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23.1
- 2.6.23.2
- 2.6.23.3
- 2.6.23.4
- 2.6.23.5
- 2.6.23.6
- 2.6.23.7
- 2.6.24
- 2.6.24
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.
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.
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.82% 0.03822
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03822
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.82% (0.03822) | 89.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.82% (0.03822) | 88.67th | v5 (v2026.06.15) |
| Mar 30, 2025 | 6.64% (0.06635) | 90.29th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.18% (0.03182) | 78.14th | v4 (v2025.03.14) |
| Mar 17, 2025 | 6.64% (0.06635) | 90.51th | v4 (v2025.03.14) |
| Jan 10, 2025 | 35.05% (0.35053) | 97.16th | v3 (v2023.03.01) |
| Dec 17, 2024 | 39.25% (0.39249) | 97.27th | v3 (v2023.03.01) |
| Oct 26, 2024 | 11.39% (0.11389) | 95.37th | v3 (v2023.03.01) |
| Aug 11, 2024 | 9.10% (0.09102) | 94.72th | v3 (v2023.03.01) |
| Jul 4, 2024 | 7.16% (0.07160) | 94.06th | v3 (v2023.03.01) |
| Apr 18, 2024 | 7.29% (0.07291) | 93.96th | v3 (v2023.03.01) |
| Mar 14, 2023 | 7.21% (0.07209) | 92.94th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.72% (0.06716) | 92.70th | 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 (1)
References (27)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=96a2d41a3e495734b63bff4e5dd0112741b93b38 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00002.html vendor-advisoryx_refsource_SUSE
- http://lwn.net/Articles/258947/ mailing-listx_refsource_MLIST
- http://secunia.com/advisories/27664 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27703 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27888 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27919 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27922 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/28170 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/28706 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/29245 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.23.8 x_refsource_CONFIRMVendor Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.24-rc3 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:044 vendor-advisoryx_refsource_MANDRIVAVendor Advisory
- http://www.novell.com/linux/security/advisories/2007_63_kernel.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/26474 vdb-entryx_refsource_BIDPatch
- http://www.ubuntu.com/usn/usn-558-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/usn-574-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2007/3902 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2007-5501 Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/38548 vdb-entryx_refsource_XF
- https://issues.rpath.com/browse/RPL-1965 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2007-5501
- https://www.cve.org/CVERecord?id=CVE-2007-5501
- https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00032.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00170.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00302.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Nov 15, 2007
Updated Aug 7, 2024
Reserved Oct 17, 2007
Link CVE-2007-5501
CISA Vulnrichment
Updated n/a