CVE-2019-10081
First published: Wed Aug 14 2019(Updated: )
A vulnerability was found in Apache httpd, in mod_http2. Under certain circumstances, HTTP/2 early pushes could lead to memory corruption, causing a server to crash.
Credit: security@apache.org security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/jbcs-httpd24-apr | <0:1.6.3-86.jbcs.el6 | 0:1.6.3-86.jbcs.el6 |
| redhat/jbcs-httpd24-brotli | <0:1.0.6-21.jbcs.el6 | 0:1.0.6-21.jbcs.el6 |
| redhat/jbcs-httpd24-httpd | <0:2.4.37-52.jbcs.el6 | 0:2.4.37-52.jbcs.el6 |
| redhat/jbcs-httpd24-openssl | <1:1.1.1c-16.jbcs.el6 | 1:1.1.1c-16.jbcs.el6 |
| redhat/jbcs-httpd24-apr | <0:1.6.3-86.jbcs.el7 | 0:1.6.3-86.jbcs.el7 |
| redhat/jbcs-httpd24-brotli | <0:1.0.6-21.jbcs.el7 | 0:1.0.6-21.jbcs.el7 |
| redhat/jbcs-httpd24-httpd | <0:2.4.37-52.jbcs.el7 | 0:2.4.37-52.jbcs.el7 |
| redhat/jbcs-httpd24-openssl | <1:1.1.1c-16.jbcs.el7 | 1:1.1.1c-16.jbcs.el7 |
| redhat/httpd | <2.4.41 | 2.4.41 |
| Apache HTTP Server | >=2.4.20<=2.4.39 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| debian/apache2 | 2.4.62-1~deb11u1 2.4.62-1~deb11u2 2.4.62-1~deb12u2 2.4.62-3 2.4.63-1 | |
| Debian | =9.0 | |
| Debian | =10.0 |
Remedy
This flaw is only exploitable if Apache httpd is configured to respond to HTTP/2 requests, which is done by including "h2" or "h2c" in the "Protocols" list in a configuration file. The following command can be used to search for possible vulnerable configurations: grep -R '^\s*Protocols\>.*\<h2\>' /etc/httpd/ See https://httpd.apache.org/docs/2.4/mod/mod_http2.html
Remedy
Unpatched servers can disable HTTP/2 push with the "H2Push off" directive.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2019-10081 https://nvd.nist.gov/vuln/detail/CVE-2019-10081 https://httpd.apache.org/security/vulnerabilities_24.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1743966
- https://access.redhat.com/errata/RHSA-2020:1337
- https://access.redhat.com/errata/RHSA-2020:4751
- https://access.redhat.com/errata/RHSA-2020:1336
- https://access.redhat.com/security/cve/cve-2019-10081
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00004.html
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
- https://seclists.org/bugtraq/2019/Aug/47
- https://security.gentoo.org/glsa/201909-04
- https://security.netapp.com/advisory/ntap-20190905-0003/
- https://support.f5.com/csp/article/K84341091?utm_source=f5support&utm_medium=RSS
- https://usn.ubuntu.com/4113-1/
- https://www.debian.org/security/2019/dsa-4509
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://support.f5.com/csp/article/K84341091?utm_source=f5support&amp;utm_medium=RSS
- https://launchpad.net/bugs/cve/CVE-2019-10081
- https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
- https://support.f5.com/csp/article/K84341091?utm_source=f5support&%3Butm_medium=RSS
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743967
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743968
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743969
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743971
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743973
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743970
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743972
- https://access.redhat.com/support/policy/updates/jboss_notes
- https://httpd.apache.org/docs/2.4/mod/mod_http2.html
- https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2019-10081
- https://security-tracker.debian.org/tracker/CVE-2019-10081
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10081
- https://nvd.nist.gov/vuln/detail/CVE-2019-10081
- https://ubuntu.com/security/CVE-2019-10081
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2019-10081?
The severity of CVE-2019-10081 is medium.
How does CVE-2019-10081 affect Apache httpd?
CVE-2019-10081 affects Apache httpd versions 2.4.20 through 2.4.39.
How can CVE-2019-10081 be fixed?
To fix CVE-2019-10081, update Apache httpd to version 2.4.41 or higher.
What is the impact of CVE-2019-10081?
The impact of CVE-2019-10081 is memory overwrite and potential crashes in Apache httpd.
Is there any additional information available for CVE-2019-10081?
Yes, you can refer to the following links for additional information: [Bugzilla Red Hat - ID 1743967](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743967), [Bugzilla Red Hat - ID 1743968](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743968), [Bugzilla Red Hat - ID 1743969](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1743969).
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