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CVE-2015-7549

Date: October 30, 2017

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.

Language: C

Severity Score

Related Resources (12)

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=43b11a91dd861a946b231b89b754285
https://access.redhat.com/security/cve/CVE-2015-7549
http://www.openwall.com/lists/oss-security/2015/12/14/2
http://www.securityfocus.com/bid/80761
https://security.gentoo.org/glsa/201602-01
https://security-tracker.debian.org/tracker/CVE-2015-7549
http://www.debian.org/security/2016/dsa-3471
https://nvd.nist.gov/vuln/detail/CVE-2015-7549
https://bugzilla.redhat.com/show_bug.cgi?id=1291137
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175380.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2015-7549
https://www.mend.io/vulnerability-database/CVE-2015-7549

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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