MEDIUM
nginx NULL pointer dereference
Published Nov 24, 2009
5.0
MEDIUMCVSS 2.0
EPSS 10.18%
Description
src/http/ngx_http_parse.c in nginx (aka Engine X) 0.1.0 through 0.4.14, 0.5.x before 0.5.38, 0.6.x before 0.6.39, 0.7.x before 0.7.62, and 0.8.x before 0.8.14 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a long URI.
Affected products
No data.
OR
- 0.1.0
- 0.1.1
- 0.1.2
- 0.1.3
- 0.1.4
- 0.1.5
- 0.1.6
- 0.1.7
- 0.1.8
- 0.1.9
- 0.1.10
- 0.1.11
- 0.1.12
- 0.1.13
- 0.1.14
- 0.1.15
- 0.1.16
- 0.1.17
- 0.1.18
- 0.1.19
- 0.1.20
- 0.1.21
- 0.1.22
- 0.1.23
- 0.1.24
- 0.1.25
- 0.1.26
- 0.1.27
- 0.1.28
- 0.1.29
- 0.1.30
- 0.1.31
- 0.1.32
- 0.1.33
- 0.1.34
- 0.1.35
- 0.1.36
- 0.1.37
- 0.1.38
- 0.1.39
- 0.1.40
- 0.1.41
- 0.1.42
- 0.1.43
- 0.1.44
- 0.1.45
- 0.2.0
- 0.2.1
- 0.2.2
- 0.2.3
- 0.2.4
- 0.2.5
- 0.2.6
- 0.3.0
- 0.3.1
- 0.3.2
- 0.3.3
- 0.3.4
- 0.3.5
- 0.3.6
- 0.3.7
- 0.3.8
- 0.3.9
- 0.3.10
- 0.3.11
- 0.3.12
- 0.3.13
- 0.3.14
- 0.3.15
- 0.3.16
- 0.3.17
- 0.3.18
- 0.3.19
- 0.3.20
- 0.3.21
- 0.3.22
- 0.3.23
- 0.3.24
- 0.3.25
- 0.3.26
- 0.3.27
- 0.3.28
- 0.3.29
- 0.3.30
- 0.3.31
- 0.3.32
- 0.3.33
- 0.3.34
- 0.3.35
- 0.3.36
- 0.3.37
- 0.3.38
- 0.3.39
- 0.3.40
- 0.3.41
- 0.3.42
- 0.3.43
- 0.3.44
- 0.3.45
- 0.3.46
- 0.3.47
- 0.3.48
- 0.3.49
- 0.3.50
- 0.3.51
- 0.3.52
- 0.3.53
- 0.3.54
- 0.3.55
- 0.3.56
- 0.3.57
- 0.3.58
- 0.3.59
- 0.3.60
- 0.3.61
- 0.4.0
- 0.4.1
- 0.4.2
- 0.4.3
- 0.4.4
- 0.4.5
- 0.4.6
- 0.4.7
- 0.4.8
- 0.4.9
- 0.4.10
- 0.4.11
- 0.4.12
- 0.4.13
- 0.5.0
- 0.5.1
- 0.5.2
- 0.5.3
- 0.5.4
- 0.5.5
- 0.5.6
- 0.5.7
- 0.5.8
- 0.5.9
- 0.5.10
- 0.5.11
- 0.5.12
- 0.5.13
- 0.5.14
- 0.5.15
- 0.5.16
- 0.5.17
- 0.5.18
- 0.5.19
- 0.5.20
- 0.5.21
- 0.5.22
- 0.5.23
- 0.5.24
- 0.5.25
- 0.5.26
- 0.5.27
- 0.5.28
- 0.5.29
- 0.5.30
- 0.5.31
- 0.5.32
- 0.5.33
- 0.5.34
- 0.5.35
- 0.5.36
- 0.5.37
- 0.6.0
- 0.6.1
- 0.6.2
- 0.6.3
- 0.6.4
- 0.6.5
- 0.6.6
- 0.6.7
- 0.6.8
- 0.6.9
- 0.6.10
- 0.6.11
- 0.6.12
- 0.6.13
- 0.6.14
- 0.6.15
- 0.6.17
- 0.6.18
- 0.6.19
- 0.6.20
- 0.6.21
- 0.6.22
- 0.6.23
- 0.6.24
- 0.6.25
- 0.6.26
- 0.6.27
- 0.6.28
- 0.6.29
- 0.6.30
- 0.6.31
- 0.6.32
- 0.6.33
- 0.6.34
- 0.6.35
- 0.6.36
- 0.6.37
- 0.6.38
- 0.7.0
- 0.7.1
- 0.7.2
- 0.7.3
- 0.7.4
- 0.7.5
- 0.7.6
- 0.7.7
- 0.7.8
- 0.7.9
- 0.7.10
- 0.7.11
- 0.7.12
- 0.7.13
- 0.7.14
- 0.7.15
- 0.7.16
- 0.7.17
- 0.7.18
- 0.7.19
- 0.7.20
- 0.7.21
- 0.7.22
- 0.7.23
- 0.7.24
- 0.7.25
- 0.7.26
- 0.7.27
- 0.7.28
- 0.7.29
- 0.7.30
- 0.7.31
- 0.7.32
- 0.7.33
- 0.7.34
- 0.7.35
- 0.7.36
- 0.7.37
- 0.7.38
- 0.7.39
- 0.7.40
- 0.7.41
- 0.7.42
- 0.7.43
- 0.7.44
- 0.7.45
- 0.7.46
- 0.7.47
- 0.7.48
- 0.7.49
- 0.7.50
- 0.7.51
- 0.7.52
- 0.7.53
- 0.7.54
- 0.7.55
- 0.7.56
- 0.7.57
- 0.7.58
- 0.7.59
- 0.7.60
- 0.7.61
- 0.8.0
- 0.8.1
- 0.8.2
- 0.8.3
- 0.8.4
- 0.8.5
- 0.8.6
- 0.8.7
- 0.8.8
- 0.8.9
- 0.8.10
- 0.8.11
- 0.8.12
- 0.8.13
- 0.8.14
- 0.6.1516
No data.
No Red Hat product state for this CVE.
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.
10.18% 0.10181
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.10181
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 3, 2026 | 10.18% (0.10181) | 95.54th | v5 (v2026.06.15) |
| Aug 12, 2026 | 10.18% (0.10181) | 95.23th | v5 (v2026.06.15) |
| Jul 18, 2026 | 11.31% (0.11306) | 95.49th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.18% (0.10181) | 95.05th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.72% (0.02722) | 84.65th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.31% (0.06309) | 84.49th | v4 (v2025.03.14) |
| Mar 19, 2025 | 2.72% (0.02722) | 84.34th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.14% (0.05142) | 89.12th | v4 (v2025.03.14) |
| Dec 17, 2024 | 4.00% (0.04004) | 91.96th | v3 (v2023.03.01) |
| Oct 31, 2024 | 6.27% (0.06266) | 93.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 8.61% (0.08606) | 93.43th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.58% (0.06576) | 91.38th | v2 (v2022.01.01) |
| Feb 13, 2023 | 6.58% (0.06576) | 91.05th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.71% (0.04714) | 88.87th | v2 (v2022.01.01) |
| Jul 18, 2022 | 6.58% (0.06576) | 90.90th | v2 (v2022.01.01) |
| Jul 17, 2022 | 3.78% (0.03779) | 84.65th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.58% (0.06576) | 90.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.58% (0.06576) | 78.44th | v2 (v2022.01.01) |
Weaknesses (1)
References (18)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=552035 x_refsource_CONFIRMExploit
- http://marc.info/?l=nginx&m=125692080328141&w=2 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/48577 third-party-advisoryx_refsource_SECUNIA
- http://security.debian.org/pool/updates/main/n/nginx/nginx_0.4.13-2+etch3.diff.gz x_refsource_CONFIRM
- http://security.gentoo.org/glsa/glsa-201203-22.xml vendor-advisoryx_refsource_GENTOO
- http://sysoev.ru/nginx/patch.null.pointer.txt x_refsource_CONFIRMPatch
- http://www.debian.org/security/2009/dsa-1920 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2009/11/20/1 mailing-listx_refsource_MLISTPatch
- http://www.openwall.com/lists/oss-security/2009/11/20/6 mailing-listx_refsource_MLISTPatch
- http://www.openwall.com/lists/oss-security/2009/11/23/10 mailing-listx_refsource_MLISTPatch
- http://www.securityfocus.com/bid/36839 vdb-entryx_refsource_BIDExploitPatch
- https://access.redhat.com/security/cve/CVE-2009-3896 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=539565 x_refsource_CONFIRMPatchIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-3896
- https://www.cve.org/CVERecord?id=CVE-2009-3896
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00428.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00442.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00449.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Nov 24, 2009
Updated Aug 7, 2024
Reserved Nov 5, 2009
Link CVE-2009-3896
CISA Vulnrichment
Updated n/a