Bug 1144291 (CVE-2014-6054)
| Summary: | CVE-2014-6054 libvncserver: server divide-by-zero flaw in scaling factor handling | ||
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| Product: | [Other] Security Response | Reporter: | Murray McAllister <mmcallis> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | alekcejk, chazlett, jgrulich, jreznik, jrusnack, kevin, ltinkl, negativo17, pahan, ppisar, rdieter, rnovacek, security-response-team, sisharma, smparrish, than, twaugh, vdanen |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
A divide-by-zero flaw was found in the way LibVNCServer handled the scaling factor when it was set to "0". A remote attacker could use this flaw to crash the VNC server using a malicious VNC client.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-11-11 22:34:04 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: | 1145878, 1145879, 1145880, 1145883, 1157668, 1157669, 1157670, 1157671, 1157674, 1157675, 1157676, 1157677 | ||
| Bug Blocks: | 1144297 | ||
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Description
Murray McAllister
2014-09-19 07:39:39 UTC
Acknowledgements: Red Hat would like to thank oCERT for reporting this issue. oCERT acknowledges Nicolas RUFF as the original reporter. Public now: http://seclists.org/oss-sec/2014/q3/639 Created libvncserver tracking bugs for this issue: Affects: fedora-all [bug 1145878] Affects: epel-5 [bug 1145879] Affects: epel-7 [bug 1145880] Created krfb tracking bugs for this issue: Affects: fedora-all [bug 1145883] krfb advisory: http://www.kde.org/info/security/advisory-20140923-1.txt libvncserver-0.9.10-0.6.20140718git9453be42.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. libvncserver-0.9.10-0.6.20140718git9453be42.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. libvncserver-0.9.10-0.6.20140718git9453be42.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report. krfb-4.11.5-4.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report. libvncserver-0.9.10-0.6.20140718git9453be42.el5 has been pushed to the Fedora EPEL 5 stable repository. If problems still persist, please make note of it in this bug report. IssueDescription: A divide-by-zero flaw was found in the way LibVNCServer handled the scaling factor when it was set to "0". A remote attacker could use this flaw to crash the VNC server using a malicious VNC client. This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Via RHSA-2014:1826 https://rhn.redhat.com/errata/RHSA-2014-1826.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2014:1827 https://rhn.redhat.com/errata/RHSA-2014-1827.html |