Input validation error in QEMU - CVE-2016-8909
Published: November 4, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32134
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-8909
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows local guest OS administrators to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (infinite loop and CPU consumption) via an entry with the same value for buffer length and pointer position.
How to mitigate CVE-2016-8909
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Sources
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
- http://www.openwall.com/lists/oss-security/2016/10/24/1
- http://www.openwall.com/lists/oss-security/2016/10/24/4
- http://www.securityfocus.com/bid/93842
- https://access.redhat.com/errata/RHSA-2017:2392
- https://access.redhat.com/errata/RHSA-2017:2408
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg04682.html
- https://security.gentoo.org/glsa/201611-11