Bug 1743974 (CVE-2019-10082)
| Summary: | CVE-2019-10082 httpd: read-after-free in h2 connection shutdown | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Dhananjay Arunesh <darunesh> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | anon.amish, bnater, csutherl, dmoppert, gzaronik, hhorak, jclere, jdoyle, jkaluza, jorton, kdudka, krathod, lgao, luhliari, mbabacek, mturk, myarboro, pahan, pslavice, rsvoboda, twalsh, weli, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | httpd 2.4.41 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A read-after-free vulnerability was discovered in Apache httpd, in mod_http2. A specially crafted http/2 client session could cause the server to read memory that was previously freed during connection shutdown, potentially leading to a crash.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-04-06 22:31:56 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1743975, 1743976, 1747288, 1747289 | ||
| Bug Blocks: | 1744000 | ||
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Description
Dhananjay Arunesh
2019-08-21 05:37:36 UTC
Created httpd tracking bugs for this issue: Affects: fedora-all [bug 1743975] Created mod_http2 tracking bugs for this issue: Affects: fedora-all [bug 1743976] Created nghttp2 tracking bugs for this issue: Affects: epel-all [bug 1743977] Affects: fedora-all [bug 1743979] Created nginx tracking bugs for this issue: Affects: fedora-all [bug 1743981] Created nodejs tracking bugs for this issue: Affects: epel-all [bug 1743978] Affects: fedora-all [bug 1743980] External References: https://httpd.apache.org/security/vulnerabilities_24.html Could you please explain why you created tracking bugs for nghttp2? This vulnerability is out of security support scope for the following products: * Red Hat JBoss Enterprise Web Server 3 Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details. Mitigation:
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
This vulnerability is out of security support scope for the following products: * Red Hat JBoss Enterprise Web Server 2 Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details. This issue has been addressed in the following products: JBoss Core Services Apache HTTP Server 2.4.37 SP2 Via RHSA-2020:1336 https://access.redhat.com/errata/RHSA-2020:1336 This issue has been addressed in the following products: JBoss Core Services on RHEL 6 JBoss Core Services on RHEL 7 Via RHSA-2020:1337 https://access.redhat.com/errata/RHSA-2020:1337 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2019-10082 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4751 https://access.redhat.com/errata/RHSA-2020:4751 |