SB2019010833 - Denial of service in xen (Alpine package)
Published: January 8, 2019
Security Bulletin ID
SB2019010833
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Denial of service (CVE-ID: CVE-2018-19967)
The vulnerability allows an adjacent attacker to cause DoS condition on the target system.
The vulnerability exists due to unspecified flaw. An adjacent attacker can invoke a HLE transaction with the XACQUIRE prefix on the host physical memory range covering the first 4 MiB starting at the 1GiB boundary to cause denial of service conditions on the host system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=4cafe4f7ac5e95424824e1ef5835b409f1fe48e7
- https://git.alpinelinux.org/aports/commit/?id=1d0fe0196f9102c4c9edf2965deb91b142688924
- https://git.alpinelinux.org/aports/commit/?id=f39fc76089047b3f9b0e1ec06aecb40cc1ac1786
- https://git.alpinelinux.org/aports/commit/?id=b1098f74cfa616c0046ba6c5f2d032ac2f1d8e02
- https://git.alpinelinux.org/aports/commit/?id=e28e1495e1510e8a1673d135dc5272813b38a0cf
- https://git.alpinelinux.org/aports/commit/?id=3157c8cf385f659174a6d95a9218bc3281359513