MEDIUM
security flaw
Published Sep 10, 2004
5.0
MEDIUMCVSS 2.0
EPSS 72.31%
Description
The char_buffer_read function in the mod_ssl module for Apache 2.x, when using reverse proxying to an SSL server, allows remote attackers to cause a denial of service (segmentation fault).
Affected products
No data.
- ≥ 2.0.44 · < 2.0.51
No data.
Red Hat Enterprise Linux 3
httpd-0:2.0.46-40.ent
Fixed · RHSA-2004:463
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | httpd-0:2.0.46-40.ent | Fixed | RHSA-2004:463 |
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:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
72.31% 0.72309
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.72309
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 (44 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 72.31% (0.72309) | 99.42th | v5 (v2026.06.15) |
| Aug 19, 2026 | 72.31% (0.72309) | 99.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 69.65% (0.69653) | 99.28th | v5 (v2026.06.15) |
| Mar 4, 2026 | 47.69% (0.47686) | 97.64th | v4 (v2025.03.14) |
| Mar 1, 2026 | 66.88% (0.66876) | 98.53th | v4 (v2025.03.14) |
| Feb 4, 2026 | 47.69% (0.47686) | 97.61th | v4 (v2025.03.14) |
| Feb 1, 2026 | 66.88% (0.66876) | 98.51th | v4 (v2025.03.14) |
| Jan 4, 2026 | 47.69% (0.47686) | 97.59th | v4 (v2025.03.14) |
| Jan 1, 2026 | 66.88% (0.66876) | 98.50th | v4 (v2025.03.14) |
| Dec 28, 2025 | 47.69% (0.47686) | 97.59th | v4 (v2025.03.14) |
| Dec 27, 2025 | 59.52% (0.59522) | 98.17th | v4 (v2025.03.14) |
| Dec 4, 2025 | 47.69% (0.47686) | 97.56th | v4 (v2025.03.14) |
| Dec 1, 2025 | 66.88% (0.66876) | 98.48th | v4 (v2025.03.14) |
| Nov 4, 2025 | 47.69% (0.47686) | 97.56th | v4 (v2025.03.14) |
| Nov 1, 2025 | 66.88% (0.66876) | 98.49th | v4 (v2025.03.14) |
| Oct 28, 2025 | 47.69% (0.47686) | 97.56th | v4 (v2025.03.14) |
| Oct 27, 2025 | 59.52% (0.59522) | 98.14th | v4 (v2025.03.14) |
| Oct 4, 2025 | 47.69% (0.47686) | 97.62th | v4 (v2025.03.14) |
| Oct 1, 2025 | 66.88% (0.66876) | 98.51th | v4 (v2025.03.14) |
| Sep 4, 2025 | 59.52% (0.59522) | 98.19th | v4 (v2025.03.14) |
| Sep 1, 2025 | 68.98% (0.68983) | 98.58th | v4 (v2025.03.14) |
| Aug 5, 2025 | 59.52% (0.59522) | 98.15th | v4 (v2025.03.14) |
| Aug 4, 2025 | 61.96% (0.61955) | 98.26th | v4 (v2025.03.14) |
| Aug 1, 2025 | 72.34% (0.72339) | 98.70th | v4 (v2025.03.14) |
| Jul 30, 2025 | 61.96% (0.61955) | 98.26th | v4 (v2025.03.14) |
| Jul 6, 2025 | 56.48% (0.56480) | 97.97th | v4 (v2025.03.14) |
| Jul 1, 2025 | 70.44% (0.70441) | 98.60th | v4 (v2025.03.14) |
| Jun 4, 2025 | 56.48% (0.56480) | 97.96th | v4 (v2025.03.14) |
| Jun 1, 2025 | 70.44% (0.70441) | 98.59th | v4 (v2025.03.14) |
| May 5, 2025 | 56.48% (0.56480) | 97.95th | v4 (v2025.03.14) |
| May 1, 2025 | 70.44% (0.70441) | 98.59th | v4 (v2025.03.14) |
| Apr 1, 2025 | 56.48% (0.56480) | 97.92th | v4 (v2025.03.14) |
| Mar 31, 2025 | 70.44% (0.70441) | 98.58th | v4 (v2025.03.14) |
| Mar 30, 2025 | 56.48% (0.56480) | 97.92th | v4 (v2025.03.14) |
| Mar 29, 2025 | 60.75% (0.60746) | 97.56th | v4 (v2025.03.14) |
| Mar 24, 2025 | 56.48% (0.56480) | 97.93th | v4 (v2025.03.14) |
| Mar 23, 2025 | 70.44% (0.70441) | 98.56th | v4 (v2025.03.14) |
| Mar 17, 2025 | 56.48% (0.56480) | 97.89th | v4 (v2025.03.14) |
| Dec 17, 2024 | 17.99% (0.17989) | 96.15th | v3 (v2023.03.01) |
| Nov 8, 2023 | 5.66% (0.05658) | 92.49th | v3 (v2023.03.01) |
| Aug 18, 2023 | 0.79% (0.00790) | 79.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.87% (0.00872) | 79.90th | v3 (v2023.03.01) |
| Mar 6, 2023 | 33.04% (0.33043) | 97.64th | v2 (v2022.01.01) |
| Feb 4, 2022 | 33.04% (0.33043) | 96.56th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (27)
- http://archives.neohapsis.com/archives/bugtraq/2004-09/0096.html mailing-listx_refsource_BUGTRAQBroken Link
- http://issues.apache.org/bugzilla/show_bug.cgi?id=30134 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- http://www.gentoo.org/security/en/glsa/glsa-200409-21.xml vendor-advisoryx_refsource_GENTOOThird Party Advisory
- http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2004:096 vendor-advisoryx_refsource_MANDRAKEBroken Link
- http://www.novell.com/linux/security/advisories/2004_30_apache2.html vendor-advisoryx_refsource_SUSEBroken Link
- http://www.redhat.com/support/errata/RHSA-2004-463.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.trustix.org/errata/2004/0047/ vendor-advisoryx_refsource_TRUSTIXBroken Link
- https://access.redhat.com/security/cve/CVE-2004-0751 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1617264 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/17273 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r5f9c22f9c28adbd9f00556059edc7b03a5d5bb71d4bb80257c0d34e4%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r734a07156abf332d5ab27fb91d9d962cacfef4f3681e44056f064fa8%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rb9c9f42dafa25d2f669dac2a536a03f2575bc5ec1be6f480618aee10%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2004-0751
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11864 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2004-0751
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 10, 2004
Updated Aug 8, 2024
Reserved Jul 26, 2004
Link CVE-2004-0751
CISA Vulnrichment
Updated n/a