Bug 1243891 (CVE-2015-0253)
| Summary: | CVE-2015-0253 httpd: NULL pointer dereference crash with ErrorDocument 400 pointing to a local URL-path | ||
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| Product: | [Other] Security Response | Reporter: | Vasyl Kaigorodov <vkaigoro> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | apatters, cdewolf, ceph-eng-bugs, cpelland, dajohnso, dandread, darran.lofthouse, dclarizi, dknox, fnasser, gblomqui, gmccullo, gtanzill, huwang, jason.greene, jawilson, jboss-set, jclere, jdoyle, jfrey, jhardy, jkaluza, jorton, jprause, kseifried, lgao, mmaslano, myarboro, obarenbo, pahan, pgier, pslavice, rmeggins, roliveri, rsvoboda, twalsh, vtunka, webstack-team, weli, xlecauch |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | httpd 2.4.16 | Doc Type: | Bug Fix |
| Doc Text: |
A NULL pointer dereference flaw was found in the way httpd generated certain error responses. A remote attacker could possibly use this flaw to crash the httpd child process using a request that triggers a certain HTTP error.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-08-24 19:32:47 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: | 1243894, 1249799, 1249800 | ||
| Bug Blocks: | 1243893 | ||
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Description
Vasyl Kaigorodov
2015-07-16 14:04:25 UTC
Created httpd tracking bugs for this issue: Affects: fedora-all [bug 1243894] httpd-2.4.16-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. This issue was actually fixed in version 2.4.13. However, as versions 2.4.13, 2.4.14 and 2.4.15 were not released, 2.4.16 is the first released upstream version that includes the fix. Upstream bug report for this issue: https://bz.apache.org/bugzilla/show_bug.cgi?id=57531 Upstream commit (in 2.4.x branch) fixing the problem: https://svn.apache.org/viewvc?view=revision&revision=1668879 Upstream notes that the issue only affected version starting with 2.4.11, which includes the following fix: *) core: Support custom ErrorDocuments for HTTP 501 and 414 status codes. PR 57167 [Edward Lu <Chaosed0 gmail.com>] Upstream bug report: https://bz.apache.org/bugzilla/show_bug.cgi?id=57167 Upstream commit (in 2.4.x branch): https://svn.apache.org/viewvc?view=revision&revision=1638071 This adds an ap_die() call to ap_read_request(), which eventually leads to the NULL pointer dereference issue for which CVE-2015-0253 was assigned. The above change is not include in Red Hat Enterprise Linux 7 and earlier httpd packages, therefore they are not affected by this issue. This issue causes httpd child process crash. When using prefork MPM, such crash only affects attacker's connection. For other MPMs, connections of other users may be affected. Statement: This issue did not affect the versions of httpd as shipped with Red Hat Enterprise Linux 4, 5, 6, and 7; JBoss Enterprise Web Server 1 and 2; JBoss Web Server 3; and JBoss Enterprise Application Platform 6. httpd-2.4.16-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS Red Hat Software Collections for Red Hat Enterprise Linux 6 Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS Via RHSA-2015:1666 https://rhn.redhat.com/errata/RHSA-2015-1666.html |