#VU33055 Infinite loop in QEMU - CVE-2017-6505
Published: March 15, 2017 / Updated: August 3, 2020
Vulnerability identifier: #VU33055
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-6505
CWE-ID: CWE-835
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
QEMU
QEMU
Software vendor:
QEMU
QEMU
Description
The vulnerability allows a local authenticated user to a crash the entire system.
The ohci_service_ed_list function in hw/usb/hcd-ohci.c in QEMU (aka Quick Emulator) before 2.9.0 allows local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors, a different vulnerability than CVE-2017-9330.
Remediation
Install update from vendor's website.
External links
- http://git.qemu-project.org/?p=qemu.git;a=commitdiff;h=95ed56939eb2eaa4e2f349fe6dcd13ca4edfd8fb
- http://www.openwall.com/lists/oss-security/2017/03/06/6
- http://www.securityfocus.com/bid/96611
- https://bugzilla.redhat.com/show_bug.cgi?id=1429432
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- https://security.gentoo.org/glsa/201704-01