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Fencer Vulns
high 7.5

CVE-2019-10081 in the critical feed json

HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the…

published 2019-08-15 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-2135

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.0%
EPSS 14.0% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client.

Patch / fix

  • apache2 Debian 14, Debian 13, Debian 12 2.4.41-1

debian advisories DEBIAN-CVE-2019-10081

  • apache2 Ubuntu 18.04 LTS 2.4.29-1ubuntu4.10

ubuntu advisories UBUNTU-CVE-2019-10081

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • httpd RHEL 8 2.4.37-30.module+el8.3.0+7001+0766b9e7
  • mod_md RHEL 8 1:2.0.8-8.module+el8.3.0+6814+67d1e611
  • mod_ssl RHEL 8 1:2.4.37-30.module+el8.3.0+7001+0766b9e7
  • mod_ldap RHEL 8 2.4.37-30.module+el8.3.0+7001+0766b9e7
  • mod_http2 RHEL 8 1.15.7-2.module+el8.3.0+7670+8bf57d29
  • httpd-tools RHEL 8 2.4.37-30.module+el8.3.0+7001+0766b9e7
  • mod_session RHEL 8 2.4.37-30.module+el8.3.0+7001+0766b9e7
  • httpd-manual RHEL 8 2.4.37-30.module+el8.3.0+7001+0766b9e7

red hat advisories RHSA-2020:4751RHSA-2020:1337

  • apache2 SLES for SAP 12 SP4, SLES 12 SP4, SLE Software Development Kit 12 SP4 2.4.23-29.43.1
  • apache2 SLE Module for Server Applications 15 SP1, SLE Module for Server Applications 15 2.4.33-3.21.1

suse advisories SUSE-SU-2019:2329-1SUSE-SU-2019:2237-1

  • apache2 openSUSE Tumbleweed 2.4.49-1.1
  • apache2 openSUSE Leap 15.1, openSUSE Leap 15.0 2.4.33-lp151.8.6.1

opensuse advisories openSUSE-SU-2024:10623-1openSUSE-SU-2019:2051-1

  • mod_md AlmaLinux 8 1:2.0.8-8.module_el8.5.0+2609+b30d9eec
  • mod_md AlmaLinux 8 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa

almalinux advisories ALSA-2020:4751

  • mod_md Rocky Linux 8 1:2.0.8-8.module+el8.5.0+695+1fa8055e
  • mod_md Rocky Linux 8 1:2.0.8-8.module+el8.4.0+553+7a69454b

rocky linux advisories RLSA-2020:4751

  • apache2 Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 2.4.41-r0

alpine advisories ALPINE-CVE-2019-10081

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-10081 updated cvss 5.3

httpd: memory corruption on early pushes

  • Red Hat JBoss Enterprise Web Server 2 jbcs-httpd24, httpd22 httpd22, jbcs-httpd24-runtime Red Hat JBoss Web Server 3 httpd24 httpd24
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Software Collections httpd24-httpd, httpd24-mod_md, httpd24-mod_ssl, httpd24-mod_ldap, httpd24-httpd-tools, httpd24-mod_session, +2 more
    affected: workaround, no fix planned “Will not fix”
  • Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2
    fixed: vendor fix RHSA-2020:1336
  • Red Hat Enterprise Linux AppStream (v. 8) mod_md 2.0.8-8.module+el8.3.0+6814+67d1e611, httpd 2.4.37-30.module+el8.3.0+7001+0766b9e7, mod_ssl 2.4.37-30.module+el8.3.0+7001+0766b9e7, mod_http2 1.15.7-2.module+el8.3.0+7670+8bf57d29, mod_ldap 2.4.37-30.module+el8.3.0+7001+0766b9e7, httpd-tools 2.4.37-30.module+el8.3.0+7001+0766b9e7, +4 more
    fixed: vendor fix RHSA-2020:4751
  • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-apr 1.6.3-86.jbcs.el6, jbcs-httpd24-brotli 1.0.6-21.jbcs.el6, jbcs-httpd24-httpd 2.4.37-52.jbcs.el6, jbcs-httpd24-mod_ssl 2.4.37-52.jbcs.el6, jbcs-httpd24-openssl 1.1.1c-16.jbcs.el6, jbcs-httpd24-mod_ldap 2.4.37-52.jbcs.el6, +9 more Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apr 1.6.3-86.jbcs.el7, jbcs-httpd24-brotli 1.0.6-21.jbcs.el7, jbcs-httpd24-httpd 2.4.37-52.jbcs.el7, jbcs-httpd24-mod_ssl 2.4.37-52.jbcs.el7, jbcs-httpd24-openssl 1.1.1c-16.jbcs.el7, jbcs-httpd24-mod_ldap 2.4.37-52.jbcs.el7, +9 more
    fixed: vendor fix RHSA-2020:1337
  • Red Hat Enterprise Linux 5 httpd Red Hat Enterprise Linux 6 httpd, mod_ssl, httpd-tools, httpd-manual Red Hat Enterprise Linux 7 httpd, mod_ssl, mod_ldap, httpd-tools, mod_session, httpd-manual, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

14.02% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • httpd.apache.org https://httpd.apache.org/security/vulnerabilities_24.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • n/a Apache HTTP Server

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.