security flaw
Published May 8, 2003
5.0
MEDIUMCVSS 2.0
EPSS 7.73%
Description
The route cache implementation in Linux 2.4, and the Netfilter IP conntrack module, allows remote attackers to cause a denial of service (CPU consumption) via packets with forged source addresses that cause a large number of hash table collisions.
Affected products
No data.
- 2.4.0
No data.
Red Hat Enterprise Linux AS (Advanced Server) version 2.1
n/a
Fixed · RHSA-2003:145
Red Hat Enterprise Linux AS (Advanced Server) version 2.1
n/a
Fixed · RHSA-2003:147
Red Hat Enterprise Linux ES version 2.1
n/a
Fixed · RHSA-2003:147
Red Hat Enterprise Linux WS version 2.1
n/a
Fixed · RHSA-2003:147
Red Hat Linux 7.1
n/a
Fixed · RHSA-2003:190
Red Hat Linux Advanced Workstation 2.1
n/a
Fixed · RHSA-2003:145
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | n/a | Fixed | RHSA-2003:145 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | n/a | Fixed | RHSA-2003:147 |
| Red Hat Enterprise Linux ES version 2.1 | n/a | Fixed | RHSA-2003:147 |
| Red Hat Enterprise Linux WS version 2.1 | n/a | Fixed | RHSA-2003:147 |
| Red Hat Linux 7.1 | n/a | Fixed | RHSA-2003:190 |
| Red Hat Linux Advanced Workstation 2.1 | n/a | Fixed | RHSA-2003:145 |
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.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.73% (0.07728) | 94.44th | v5 (v2026.06.15) |
| Aug 22, 2026 | 7.73% (0.07728) | 94.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.28% (0.04276) | 89.78th | v5 (v2026.06.15) |
| Mar 17, 2025 | 6.88% (0.06885) | 90.70th | v4 (v2025.03.14) |
| Dec 17, 2024 | 12.68% (0.12675) | 95.44th | v3 (v2023.03.01) |
| Sep 15, 2024 | 16.41% (0.16410) | 96.11th | v3 (v2023.03.01) |
| May 23, 2023 | 12.29% (0.12290) | 94.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.34% (0.07336) | 92.98th | 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) |
No CWE recorded.
References (23)
- http://archives.neohapsis.com/archives/vulnwatch/2003-q2/0073.html mailing-listx_refsource_VULNWATCH
- http://marc.info/?l=bugtraq&m=105301461726555&w=2 vendor-advisoryx_refsource_ENGARDE
- http://marc.info/?l=bugtraq&m=105595901923063&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=linux-kernel&m=104956079213417 x_refsource_MISC
- http://www.debian.org/security/2003/dsa-311 vendor-advisoryx_refsource_DEBIANPatchVendor Advisory
- http://www.debian.org/security/2003/dsa-312 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2003/dsa-332 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2003/dsa-336 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2004/dsa-442 vendor-advisoryx_refsource_DEBIAN
- http://www.enyo.de/fw/security/notes/linux-dst-cache-dos.html x_refsource_MISC
- http://www.mandriva.com/security/advisories?name=MDKSA-2003:066 vendor-advisoryx_refsource_MANDRAKE
- http://www.mandriva.com/security/advisories?name=MDKSA-2003:074 vendor-advisoryx_refsource_MANDRAKE
- http://www.redhat.com/support/errata/RHSA-2003-145.html vendor-advisoryx_refsource_REDHATPatchVendor Advisory
- http://www.redhat.com/support/errata/RHSA-2003-147.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2003-172.html vendor-advisoryx_refsource_REDHAT
- http://www.secunia.com/advisories/8786/ third-party-advisoryx_refsource_SECUNIA
- http://www.securityfocus.com/bid/7601 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2003-0244 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1617005 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15382 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2003-0244
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A261 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2003-0244
Change history (0)
No recorded changes yet.