httpd: mod_proxy_http DoS via excessive interim responses from the origin server
Published Jun 13, 2008
5.0
MEDIUMCVSS 2.0
EPSS 12.71%
Description
The ap_proxy_http_process_response function in mod_proxy_http.c in the mod_proxy module in the Apache HTTP Server 2.0.63 and 2.2.8 does not limit the number of forwarded interim responses, which allows remote HTTP servers to cause a denial of service (memory consumption) via a large number of interim responses.
Affected products
No data.
Configuration 1
- ≥ 2.0.35 · < 2.0.64
- ≥ 2.2.0 · < 2.2.9
Configuration 2
- 6.06
- 7.10
- 8.04
Configuration 3
- 8
- 9
Configuration 4
- 3.0
- 4.0
- 5.0
- 4.7
- 5.2
- 3.0
- 4.0
- 5.0
- 3.0
- 4.0
- 5.0
No data.
Red Hat Certificate System 7.3
ant-0:1.6.5-1jpp_1rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
avalon-logkit-0:1.2-2jpp_4rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
axis-0:1.2.1-1jpp_3rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
classpathx-jaf-0:1.0-2jpp_6rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
classpathx-mail-0:1.1.1-2jpp_8rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
geronimo-specs-0:1.0-0.M4.1jpp_10rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
jakarta-commons-modeler-0:2.0-3jpp_2rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
log4j-0:1.2.12-1jpp_1rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
mx4j-1:3.0.1-1jpp_4rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
pcsc-lite-0:1.3.3-3.el4
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
rhpki-ca-0:7.3.0-20.el4
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
rhpki-java-tools-0:7.3.0-10.el4
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
rhpki-kra-0:7.3.0-14.el4
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
rhpki-manage-0:7.3.0-19.el4
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
rhpki-native-tools-0:7.3.0-6.el4
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
rhpki-ocsp-0:7.3.0-13.el4
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
rhpki-tks-0:7.3.0-13.el4
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
tomcat5-0:5.5.23-0jpp_4rh.16
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
xerces-j2-0:2.7.1-1jpp_1rh
Fixed · RHSA-2010:0602
Red Hat Certificate System 7.3
xml-commons-0:1.3.02-2jpp_1rh
Fixed · RHSA-2010:0602
Red Hat Enterprise Linux 3
httpd-0:2.0.46-71.ent
Fixed · RHSA-2008:0967
Red Hat Enterprise Linux 4
httpd-0:2.0.52-41.ent.2
Fixed · RHSA-2008:0967
Red Hat Enterprise Linux 5
httpd-0:2.2.3-11.el5_2.4
Fixed · RHSA-2008:0967
Red Hat Directory Server 8
httpd
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Certificate System 7.3 | ant-0:1.6.5-1jpp_1rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | avalon-logkit-0:1.2-2jpp_4rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | axis-0:1.2.1-1jpp_3rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | classpathx-jaf-0:1.0-2jpp_6rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | classpathx-mail-0:1.1.1-2jpp_8rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | geronimo-specs-0:1.0-0.M4.1jpp_10rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | jakarta-commons-modeler-0:2.0-3jpp_2rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | log4j-0:1.2.12-1jpp_1rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | mx4j-1:3.0.1-1jpp_4rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | pcsc-lite-0:1.3.3-3.el4 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | rhpki-ca-0:7.3.0-20.el4 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | rhpki-java-tools-0:7.3.0-10.el4 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | rhpki-kra-0:7.3.0-14.el4 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | rhpki-manage-0:7.3.0-19.el4 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | rhpki-native-tools-0:7.3.0-6.el4 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | rhpki-ocsp-0:7.3.0-13.el4 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | rhpki-tks-0:7.3.0-13.el4 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | tomcat5-0:5.5.23-0jpp_4rh.16 | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | xerces-j2-0:2.7.1-1jpp_1rh | Fixed | RHSA-2010:0602 |
| Red Hat Certificate System 7.3 | xml-commons-0:1.3.02-2jpp_1rh | Fixed | RHSA-2010:0602 |
| Red Hat Enterprise Linux 3 | httpd-0:2.0.46-71.ent | Fixed | RHSA-2008:0967 |
| Red Hat Enterprise Linux 4 | httpd-0:2.0.52-41.ent.2 | Fixed | RHSA-2008:0967 |
| Red Hat Enterprise Linux 5 | httpd-0:2.2.3-11.el5_2.4 | Fixed | RHSA-2008:0967 |
| Red Hat Directory Server 8 | httpd | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2008-2364 The Red Hat Product Security has rated this issue as having moderate security impact, a future update may address this flaw. More information regarding issue severity can be found here: https://access.redhat.com/security/updates/classification/
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 12.71% (0.12714) | 96.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.82% (0.12816) | 95.77th | v5 (v2026.06.15) |
| Dec 1, 2025 | 2.09% (0.02091) | 83.55th | v4 (v2025.03.14) |
| Nov 6, 2025 | 8.56% (0.08563) | 92.01th | v4 (v2025.03.14) |
| Oct 28, 2025 | 9.70% (0.09701) | 92.56th | v4 (v2025.03.14) |
| Oct 27, 2025 | 7.14% (0.07143) | 91.17th | v4 (v2025.03.14) |
| Oct 1, 2025 | 9.70% (0.09701) | 92.67th | v4 (v2025.03.14) |
| Sep 20, 2025 | 7.14% (0.07143) | 91.21th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.06% (0.02064) | 82.32th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.55% (0.03550) | 79.24th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.51% (0.02510) | 84.31th | v4 (v2025.03.14) |
| Mar 10, 2025 | 19.38% (0.19380) | 96.39th | v3 (v2023.03.01) |
| Dec 17, 2024 | 22.10% (0.22095) | 96.48th | v3 (v2023.03.01) |
| Dec 12, 2024 | 0.59% (0.00589) | 78.99th | v3 (v2023.03.01) |
| May 3, 2024 | 0.70% (0.00700) | 80.15th | v3 (v2023.03.01) |
| Dec 23, 2023 | 0.70% (0.00700) | 78.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.69% (0.00691) | 77.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.86% (0.10861) | 94.71th | v2 (v2022.01.01) |
| Apr 1, 2022 | 10.86% (0.10861) | 94.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.86% (0.10861) | 88.35th | v2 (v2022.01.01) |
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Change history (0)
No recorded changes yet.