httpd: mod_cache NULL pointer dereference crash
Published Jul 20, 2014
4.3
MEDIUMCVSS 2.0
EPSS 11.53%
Description
The cache_invalidate function in modules/cache/cache_storage.c in the mod_cache module in the Apache HTTP Server 2.4.6, when a caching forward proxy is enabled, allows remote HTTP servers to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger a missing hostname value.
Affected products
No data.
- 2.4.6
No data.
Red Hat Enterprise Linux 7
httpd-0:2.4.6-18.el7_0
Fixed · RHSA-2014:0921
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6
httpd24-httpd-0:2.4.6-18.el6
Fixed · RHSA-2014:0922
Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS
httpd24-httpd-0:2.4.6-18.el6
Fixed · RHSA-2014:0922
Red Hat Software Collections 1 for Red Hat Enterprise Linux 7
httpd24-httpd-0:2.4.6-21.el7
Fixed · RHSA-2014:0922
CloudForms Management Engine 5
httpd
Will not fix
Red Hat Directory Server 8
httpd
Not affected
Red Hat Enterprise Linux 5
httpd
Not affected
Red Hat Enterprise Linux 6
httpd
Not affected
Red Hat JBoss Enterprise Application Platform 5
httpd
Not affected
Red Hat JBoss Enterprise Application Platform 6
httpd
Not affected
Red Hat JBoss Enterprise Web Server 1
httpd
Not affected
Red Hat JBoss Enterprise Web Server 2
httpd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | httpd-0:2.4.6-18.el7_0 | Fixed | RHSA-2014:0921 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6 | httpd24-httpd-0:2.4.6-18.el6 | Fixed | RHSA-2014:0922 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS | httpd24-httpd-0:2.4.6-18.el6 | Fixed | RHSA-2014:0922 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 7 | httpd24-httpd-0:2.4.6-21.el7 | Fixed | RHSA-2014:0922 |
| CloudForms Management Engine 5 | httpd | Will not fix | n/a |
| Red Hat Directory Server 8 | httpd | Not affected | n/a |
| Red Hat Enterprise Linux 5 | httpd | Not affected | n/a |
| Red Hat Enterprise Linux 6 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 5 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 1 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | httpd | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of httpd as shipped with Red Hat Enterprise Linux 5 and 6 as only httpd version 2.4.6 included the vulnerable code.
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:M/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 (35 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 11.53% (0.11534) | 95.90th | v5 (v2026.06.15) |
| Jun 15, 2026 | 11.53% (0.11534) | 95.46th | v5 (v2026.06.15) |
| Mar 4, 2026 | 24.35% (0.24352) | 95.98th | v4 (v2025.03.14) |
| Mar 1, 2026 | 17.18% (0.17183) | 94.92th | v4 (v2025.03.14) |
| Feb 4, 2026 | 24.35% (0.24352) | 95.95th | v4 (v2025.03.14) |
| Feb 1, 2026 | 17.18% (0.17183) | 94.86th | v4 (v2025.03.14) |
| Jan 4, 2026 | 24.35% (0.24352) | 95.91th | v4 (v2025.03.14) |
| Jan 1, 2026 | 17.18% (0.17183) | 94.84th | v4 (v2025.03.14) |
| Dec 28, 2025 | 24.35% (0.24352) | 95.91th | v4 (v2025.03.14) |
| Dec 27, 2025 | 38.41% (0.38412) | 97.12th | v4 (v2025.03.14) |
| Dec 4, 2025 | 24.35% (0.24352) | 95.88th | v4 (v2025.03.14) |
| Dec 1, 2025 | 17.18% (0.17183) | 94.80th | v4 (v2025.03.14) |
| Nov 30, 2025 | 24.35% (0.24352) | 95.87th | v4 (v2025.03.14) |
| Nov 4, 2025 | 18.66% (0.18659) | 94.99th | v4 (v2025.03.14) |
| Nov 1, 2025 | 14.58% (0.14577) | 94.21th | v4 (v2025.03.14) |
| Oct 4, 2025 | 18.66% (0.18659) | 95.02th | v4 (v2025.03.14) |
| Oct 1, 2025 | 14.58% (0.14577) | 94.26th | v4 (v2025.03.14) |
| Sep 4, 2025 | 18.05% (0.18045) | 94.92th | v4 (v2025.03.14) |
| Sep 1, 2025 | 9.16% (0.09162) | 92.42th | v4 (v2025.03.14) |
| Aug 4, 2025 | 18.05% (0.18045) | 94.90th | v4 (v2025.03.14) |
| Aug 1, 2025 | 9.16% (0.09162) | 92.40th | v4 (v2025.03.14) |
| Jul 4, 2025 | 18.66% (0.18659) | 94.97th | v4 (v2025.03.14) |
| Jul 1, 2025 | 14.58% (0.14577) | 94.17th | v4 (v2025.03.14) |
| Jun 4, 2025 | 18.66% (0.18659) | 94.92th | v4 (v2025.03.14) |
| Jun 1, 2025 | 14.58% (0.14577) | 94.14th | v4 (v2025.03.14) |
| May 4, 2025 | 18.66% (0.18659) | 94.89th | v4 (v2025.03.14) |
| May 1, 2025 | 14.58% (0.14577) | 94.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 18.66% (0.18659) | 94.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.15% (0.04147) | 92.51th | v3 (v2023.03.01) |
| Aug 14, 2023 | 4.15% (0.04147) | 91.04th | v3 (v2023.03.01) |
| Jun 27, 2023 | 5.76% (0.05757) | 92.23th | v3 (v2023.03.01) |
| Mar 7, 2023 | 14.52% (0.14520) | 94.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.24% (0.05242) | 89.75th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.24% (0.05242) | 88.72th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.24% (0.05242) | 75.28th | v2 (v2022.01.01) |
References (19)
- http://httpd.apache.org/security/vulnerabilities_24.html x_refsource_CONFIRMVendor Advisory
- http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/cache/cache_storage.c x_refsource_CONFIRM
- http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/cache/cache_storage.c?r1=1491564&r2=1523235&diff_format=h x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2013-4352 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1120604 x_refsource_CONFIRMIssue Tracking
- https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r83109088737656fa6307bd99ab40f8ff0269ae58d3f7272d7048494a%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9821b0a32a1d0a1b4947abb6f3630053fcbb2ec905d9a32c2bd4d4ee%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9b4b963760a3cb5a4a70c902f325c6c0337fe51d5b8570416f8f8729%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/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%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-2013-4352
- https://www.cve.org/CVERecord?id=CVE-2013-4352
Change history (0)
No recorded changes yet.