Bug 435759 (CVE-2008-0072)
Summary: | CVE-2008-0072 Evolution format string flaw | ||
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Product: | [Other] Security Response | Reporter: | Josh Bressers <bressers> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | unspecified | CC: | kreilly, mbarnes, mcrha, security-response-team, shillman |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | 2.10.3-8.fc7 | Doc Type: | Bug Fix |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2008-03-06 16:58:47 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: | 435796, 435797, 435798, 435799, 435800, 435801, 435802, 436080, 436081, 436082 | ||
Bug Blocks: |
Description
Josh Bressers
2008-03-03 18:38:30 UTC
Format string flaws are usually detected by FORTIFY_SOURCE which will notice that the %n is from a writable string and abort. But this wasn't happening when testing this flaw. On RHEL5, the user supplied format string is passed to em_format_format_error() in evolution which calls g_strdup_vprintf from glib2. Unfortunately g_strdup_vprintf in glib2 uses vasprintf, and vasprintf is a function that is not fortified. (I'll file a feature request about that and see if we can't get glibc to fortify vasprintf/asprintf etc.) Public now on Secunia site, lifting embargo: http://secunia.com/advisories/29057/ http://secunia.com/secunia_research/2008-8/ evolution-2.10.3-8.fc7 has been submitted as an update for Fedora 7 evolution-2.12.3-3.fc8 has been submitted as an update for Fedora 8 evolution-2.10.3-8.fc7 has been pushed to the Fedora 7 stable repository. If problems still persist, please make note of it in this bug report. evolution-2.12.3-3.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report. This issue was addressed in: Red Hat Enterprise Linux: http://rhn.redhat.com/errata/RHSA-2008-0177.html http://rhn.redhat.com/errata/RHSA-2008-0178.html Fedora: https://admin.fedoraproject.org/updates/F7/FEDORA-2008-2290 https://admin.fedoraproject.org/updates/F8/FEDORA-2008-2292 |