Bug 1260080 (CVE-2015-6855)
| Summary: | CVE-2015-6855 Qemu: ide: divide by zero issue | ||
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| Product: | [Other] Security Response | Reporter: | Prasad Pandit <ppandit> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED WONTFIX | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | abaron, aortega, apevec, ayoung, chrisw, dallan, gkotton, gmollett, jschluet, lhh, lpeer, markmc, rbryant, sclewis, security-response-team, slong, tdecacqu, virt-maint, yeylon |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
It has been discovered that a QEMU emulator built with IDE disk and CD/DVD-ROM emulation support is vulnerable to a divide-by-zero issue. The flaw could occur when executing IDE's WIN_READ_NATIVE_MAX command to determine the maximum size of a drive. A privileged user inside the guest could use this flaw to crash the QEMU instance, resulting in a denial of service.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-09-14 05:28:18 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: | 1261792, 1261793 | ||
| Bug Blocks: | 1254448 | ||
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Description
Prasad Pandit
2015-09-04 11:45:02 UTC
Statement: This issue affects the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5. This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7. This issue affects the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This issue affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. Acknowledgements: This issue was discovered by Qinghao Tang of QIHU 360 Inc. Created xen tracking bugs for this issue: Affects: fedora-all [bug 1261792] Created qemu tracking bugs for this issue: Affects: fedora-all [bug 1261793] qemu-2.4.0-4.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report. xen-4.5.1-10.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report. qemu-2.3.1-5.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. qemu-2.1.3-11.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. xen-4.5.1-10.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. xen-4.4.3-5.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. |