SB2017031628 - Out-of-bounds read in QEMU
Published: March 16, 2017 Updated: July 28, 2020
Security Bulletin ID
SB2017031628
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2017-5667)
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.
Remediation
Install update from vendor's website.
References
- 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