Out-of-bounds read in QEMU - CVE-2017-5667
Published: March 16, 2017 / Updated: July 28, 2020
Vulnerability identifier: #VU32091
CSH Severity: Low
CVSS v4.0: 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-2017-5667
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows a local authenticated user to a crash the entire system.
The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds heap access and crash) or execute arbitrary code on the QEMU host via vectors involving the data transfer length.
How to mitigate CVE-2017-5667
Install update from vendor's website.
Sources
- http://git.qemu-project.org/?p=qemu.git;a=commitdiff;h=42922105beb14c2fc58185ea022b9f72fb5465e9
- http://www.openwall.com/lists/oss-security/2017/01/30/2
- http://www.openwall.com/lists/oss-security/2017/01/31/10
- http://www.openwall.com/lists/oss-security/2017/02/12/1
- http://www.securityfocus.com/bid/95885
- https://bugzilla.redhat.com/show_bug.cgi?id=1417559
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- https://security.gentoo.org/glsa/201702-28