NULL Pointer Dereference Affecting qemu package, versions <1:2.5+dfsg-1
Snyk CVSS
Attack Complexity
Low
Privileges Required
High
Scope
Changed
Availability
High
Threat Intelligence
EPSS
0.06% (26th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN11-QEMU-514935
- published 30 Oct 2017
- disclosed 30 Oct 2017
Introduced: 30 Oct 2017
CVE-2015-7549 Open this link in a new tabHow to fix?
Upgrade Debian:11 qemu to version 1:2.5+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
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
- https://security-tracker.debian.org/tracker/CVE-2015-7549
- http://www.debian.org/security/2016/dsa-3471
- 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://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-7549
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=43b11a91dd861a946b231b89b754285