NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package qemu-kvm (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published30 Oct 2017
- disclosed30 Oct 2017
Introduced: 30 Oct 2017
CVE-2015-7549 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:12.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-kvm package and not the qemu-kvm package as distributed by Ubuntu.
The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-7549
- http://www.debian.org/security/2016/dsa-3471
- https://security-tracker.debian.org/tracker/CVE-2015-7549
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175380.html
- https://security.gentoo.org/glsa/201602-01
- http://git.qemu.org/?p=qemu.git;a=commit;h=43b11a91dd861a946b231b89b754285
- http://www.openwall.com/lists/oss-security/2015/12/14/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1291137
- http://www.securityfocus.com/bid/80761
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=43b11a91dd861a946b231b89b754285