| Summary: | <app-emulation/qemu-2.8.0: display: cirrus_vga: a divide by zero in cirrus_do_copy (CVE-2016-9921) | ||
|---|---|---|---|
| Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
| Component: | Vulnerabilities | Assignee: | Gentoo Security <security> |
| Status: | RESOLVED FIXED | ||
| Severity: | minor | CC: | qemu+disabled |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.html | ||
| See Also: | https://bugzilla.redhat.com/show_bug.cgi?id=1334398 | ||
| Whiteboard: | B3 [glsa cve] | ||
| Package list: | Runtime testing required: | --- | |
| Bug Depends on: | 601824, 604010 | ||
| Bug Blocks: | |||
this is in the 2.8.0 release Stabilization will be happen as part of bug 601824. Added to existing GLSA request. This issue was resolved and addressed in GLSA 201701-49 at https://security.gentoo.org/glsa/201701-49 by GLSA coordinator Aaron Bauman (b-man). |
From ${URL} : Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS. Upstream patch -------------- -> https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.html Reference: ---------- -> https://bugzilla.redhat.com/show_bug.cgi?id=1334398 @maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.