Bug 481376 (CVE-2008-5714)
| Summary: | CVE-2008-5714 qemu: off-by-one error in monitor.c causing VNC passwords to be truncated after 7th character | ||
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| Product: | [Other] Security Response | Reporter: | Josh Bressers <bressers> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | berrange, clalance, dwmw2, gcosta, markmc, sundaram, virt-maint, xen-maint |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-5714 | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-03-29 10:50:31 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: | |||
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Description
Josh Bressers
2009-01-23 20:12:36 UTC
More information on setting VNC passwords for Qemu/KVM guests can be found here: http://www.linux-kvm.com/content/securing-your-vnc-headless-guest-simple-passwords http://bellard.org/qemu/qemu-doc.html#SEC36 Looking at various version of Qemu, KVM and Xen shipped, following seem to be affected: - Qemu - All versions shipped in stable Fedora versions are currently based on upstream version 0.9.1 that contains this flaw. - KVM - Current versions in stable Fedora versions (65-15.fc9 and 74-10.fc10) contain this problem as well. Issue was fixed in KVM upstream git report via: http://git.kernel.org/?p=virt/kvm/kvm-userspace.git;a=commitdiff;h=003afe2201 and the fix is included in version 82 and later. - Xen - Version of Xen as shipped in Red Hat Enterprise Linux 5 (3.0.3-80.el5) and Fedora 9 (3.2.0-15.fc9) are not affected by this flaw (longer (256) buffer used, full buffer size passed to monitor_readline()). The flaw exists in Fedora 10 and Rawhide Xen versions (3.3.0-1.fc10 and 3.3.1-2.fc11, ioemu-qemu-xen). Is there any way to run Qemu / KVM with monitor enabled when used with libvirt? From the search through the XML format spec, there does not seem to be any option to enable it. Is there a way to enable monitor in qemu-dm used by Xen? Oh god, will those CVEs on vnc ever stop? |