Bug 1291137 (CVE-2015-7549)
| Summary: | CVE-2015-7549 Qemu: pci: null pointer dereference 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, ailan, amit.shah, apevec, areis, ayoung, berrange, cfergeau, chrisw, dallan, drjones, dwmw2, gkotton, imammedo, itamar, jen, jforbes, jschluet, knoel, lhh, lpeer, markmc, m.a.young, mkenneth, mrezanin, mst, pbonzini, rbryant, rjones, rkrcmar, sclewis, slong, srevivo, tdecacqu, virt-maint, virt-maint, vkuznets, xen-maint |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
A NULL pointer dereference vulnerability was found in the QEMU emulator built with PCI MSI-X support. Because MSI-X MMIO support did not define the .write method, when the controller tried to write to the pending bit array(PBA) memory region, a segmentation fault occurred. A privileged attacker inside the guest could use this flaw to crash the QEMU process resulting in denial of service.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-06-08 02:46:21 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: | 1291138, 1291139 | ||
| Bug Blocks: | 1256423, 1290875 | ||
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Description
Prasad Pandit
2015-12-14 05:41:47 UTC
Created xen tracking bugs for this issue: Affects: fedora-all [bug 1291139] Created qemu tracking bugs for this issue: Affects: fedora-all [bug 1291138] Statement: This issue does not affect the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5. This issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6, and the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 7. This issue affects 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 reported by Qinghao Tang of QIHU 360 Marvel Team. qemu-2.4.1-5.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report. qemu-2.3.1-10.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. xen-4.5.2-7.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report. xen-4.5.2-7.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. *** Bug 1256420 has been marked as a duplicate of this bug. *** |