httpd: Use-after-free on HTTP/2 stream shutdown
Published Mar 26, 2018
5.9
MEDIUMCVSS 3.0
EPSS 12.88%
Description
When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.30 could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk.
Affected products
-
- Version 2.4.17 to 2.4.29StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | n/a |
|
Configuration 1
- ≤ 2.4.29
Configuration 2
- 18.04
Configuration 3
- n/a
- n/a
- n/a
- n/a
No data.
JBoss Core Services on RHEL 6
jbcs-httpd24-0:1-6.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 6
jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-3.redhat_2.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 6
jbcs-httpd24-apr-0:1.6.3-31.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 6
jbcs-httpd24-apr-util-0:1.6.1-24.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 6
jbcs-httpd24-httpd-0:2.4.29-35.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_cluster-native-0:1.3.8-3.Final_redhat_2.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_jk-0:1.2.46-1.redhat_1.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 6
jbcs-httpd24-nghttp2-0:1.29.0-9.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 6
jbcs-httpd24-openssl-1:1.0.2n-14.jbcs.el6
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-0:1-6.jbcs.el7
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-3.redhat_2.jbcs.el7
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-apr-0:1.6.3-31.jbcs.el7
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-apr-util-0:1.6.1-24.jbcs.el7
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-httpd-0:2.4.29-35.jbcs.el7
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_cluster-native-0:1.3.8-3.Final_redhat_2.jbcs.el7
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_jk-0:1.2.46-1.redhat_1.jbcs.el7
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-nghttp2-0:1.29.0-9.jbcs.el7
Fixed · RHSA-2019:0367
JBoss Core Services on RHEL 7
jbcs-httpd24-openssl-1:1.0.2n-14.jbcs.el7
Fixed · RHSA-2019:0367
Red Hat JBoss Core Services
httpd
Fixed · RHSA-2019:0366
Red Hat Enterprise Linux 5
httpd
Not affected
Red Hat Enterprise Linux 6
httpd
Not affected
Red Hat Enterprise Linux 7
httpd
Not affected
Red Hat Enterprise Linux 8
httpd
Not affected
Red Hat Enterprise Linux 8
mod_http2
Will not fix
Red Hat JBoss Enterprise Web Server 2
httpd
Not affected
Red Hat JBoss Web Server 3
httpd
Not affected
Red Hat Mobile Application Platform 4
rhmap-httpd-docker
Not affected
Red Hat Software Collections
httpd24-httpd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| JBoss Core Services on RHEL 6 | jbcs-httpd24-0:1-6.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-3.redhat_2.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-apr-0:1.6.3-31.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-apr-util-0:1.6.1-24.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-httpd-0:2.4.29-35.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_cluster-native-0:1.3.8-3.Final_redhat_2.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_jk-0:1.2.46-1.redhat_1.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-nghttp2-0:1.29.0-9.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-openssl-1:1.0.2n-14.jbcs.el6 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-0:1-6.jbcs.el7 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-3.redhat_2.jbcs.el7 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-apr-0:1.6.3-31.jbcs.el7 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-apr-util-0:1.6.1-24.jbcs.el7 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-httpd-0:2.4.29-35.jbcs.el7 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_cluster-native-0:1.3.8-3.Final_redhat_2.jbcs.el7 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_jk-0:1.2.46-1.redhat_1.jbcs.el7 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-nghttp2-0:1.29.0-9.jbcs.el7 | Fixed | RHSA-2019:0367 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-openssl-1:1.0.2n-14.jbcs.el7 | Fixed | RHSA-2019:0367 |
| Red Hat JBoss Core Services | httpd | Fixed | RHSA-2019:0366 |
| Red Hat Enterprise Linux 5 | httpd | Not affected | n/a |
| Red Hat Enterprise Linux 6 | httpd | Not affected | n/a |
| Red Hat Enterprise Linux 7 | httpd | Not affected | n/a |
| Red Hat Enterprise Linux 8 | httpd | Not affected | n/a |
| Red Hat Enterprise Linux 8 | mod_http2 | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | httpd | Not affected | n/a |
| Red Hat JBoss Web Server 3 | httpd | Not affected | n/a |
| Red Hat Mobile Application Platform 4 | rhmap-httpd-docker | Not affected | n/a |
| Red Hat Software Collections | httpd24-httpd | Not affected | n/a |
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.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (43 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 12.88% (0.12880) | 96.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 13.44% (0.13436) | 95.93th | v5 (v2026.06.15) |
| Mar 8, 2026 | 12.13% (0.12125) | 93.68th | v4 (v2025.03.14) |
| Mar 4, 2026 | 11.00% (0.11001) | 93.29th | v4 (v2025.03.14) |
| Mar 1, 2026 | 2.07% (0.02074) | 83.75th | v4 (v2025.03.14) |
| Feb 4, 2026 | 11.00% (0.11001) | 93.24th | v4 (v2025.03.14) |
| Feb 1, 2026 | 2.07% (0.02074) | 83.64th | v4 (v2025.03.14) |
| Jan 4, 2026 | 10.29% (0.10291) | 92.93th | v4 (v2025.03.14) |
| Jan 1, 2026 | 1.48% (0.01480) | 80.65th | v4 (v2025.03.14) |
| Dec 4, 2025 | 8.12% (0.08124) | 91.83th | v4 (v2025.03.14) |
| Dec 1, 2025 | 1.48% (0.01480) | 80.48th | v4 (v2025.03.14) |
| Nov 21, 2025 | 8.12% (0.08124) | 91.81th | v4 (v2025.03.14) |
| Nov 18, 2025 | 36.73% (0.36735) | 96.94th | v4 (v2025.03.14) |
| Nov 4, 2025 | 8.12% (0.08124) | 91.77th | v4 (v2025.03.14) |
| Nov 1, 2025 | 1.48% (0.01480) | 80.43th | v4 (v2025.03.14) |
| Oct 4, 2025 | 8.12% (0.08124) | 91.82th | v4 (v2025.03.14) |
| Oct 1, 2025 | 1.48% (0.01480) | 80.39th | v4 (v2025.03.14) |
| Sep 4, 2025 | 8.45% (0.08446) | 92.01th | v4 (v2025.03.14) |
| Sep 1, 2025 | 1.24% (0.01239) | 78.53th | v4 (v2025.03.14) |
| Aug 30, 2025 | 8.45% (0.08446) | 91.99th | v4 (v2025.03.14) |
| Aug 13, 2025 | 11.78% (0.11784) | 93.42th | v4 (v2025.03.14) |
| Aug 4, 2025 | 9.45% (0.09446) | 92.47th | v4 (v2025.03.14) |
| Aug 1, 2025 | 1.63% (0.01627) | 81.19th | v4 (v2025.03.14) |
| Jul 4, 2025 | 9.17% (0.09169) | 92.31th | v4 (v2025.03.14) |
| Jul 1, 2025 | 1.96% (0.01959) | 82.70th | v4 (v2025.03.14) |
| Jun 4, 2025 | 9.17% (0.09169) | 92.25th | v4 (v2025.03.14) |
| Jun 1, 2025 | 1.96% (0.01959) | 82.62th | v4 (v2025.03.14) |
| May 4, 2025 | 9.17% (0.09169) | 92.22th | v4 (v2025.03.14) |
| May 1, 2025 | 1.96% (0.01959) | 82.54th | v4 (v2025.03.14) |
| Mar 30, 2025 | 9.17% (0.09169) | 91.92th | v4 (v2025.03.14) |
| Mar 29, 2025 | 15.41% (0.15409) | 91.11th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.17% (0.09169) | 92.09th | v4 (v2025.03.14) |
| Dec 17, 2024 | 3.45% (0.03446) | 91.31th | v3 (v2023.03.01) |
| Jun 26, 2024 | 1.54% (0.01539) | 87.20th | v3 (v2023.03.01) |
| May 18, 2024 | 2.14% (0.02138) | 89.25th | v3 (v2023.03.01) |
| Jan 9, 2024 | 1.91% (0.01906) | 87.27th | v3 (v2023.03.01) |
| Sep 26, 2023 | 2.68% (0.02678) | 89.18th | v3 (v2023.03.01) |
| Sep 3, 2023 | 2.58% (0.02583) | 88.91th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.38% (0.03378) | 89.91th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.77% (0.07767) | 93.09th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.77% (0.07767) | 81.37th | v2 (v2022.01.01) |
| Feb 3, 2022 | 13.31% (0.13308) | 89.07th | v5 (v2026.06.15) |
| Apr 14, 2021 | 12.33% (0.12329) | 0.00th | v1 |
References (27)
- http://www.openwall.com/lists/oss-security/2018/03/24/5 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/103528 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040567 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:0366 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0367 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-1302 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1560625 Issue Tracking
- https://httpd.apache.org/security/vulnerabilities_24.html x_refsource_CONFIRMVendor Advisory
- 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/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%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/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/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%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/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9%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://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-1302
- https://security.netapp.com/advisory/ntap-20180601-0004/ x_refsource_CONFIRMThird Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us x_refsource_CONFIRMThird Party Advisory
- https://usn.ubuntu.com/3783-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-1302
- https://www.tenable.com/security/tns-2019-09 x_refsource_CONFIRM
Change history (0)
No recorded changes yet.