SB2014102601 - Buffer overflow in Xen
Published: October 26, 2014 Updated: August 10, 2020
Security Bulletin ID
SB2014102601
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2014-5148)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process.
Remediation
Install update from vendor's website.