USN-3680-1: libvirt Ubuntu
Vulnerability summary
USN-3680-1 is a vulnerability in libvirt Ubuntu with no CVSS score yet.
No CVSS vector published; no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 2 · Downstream 0 · Related 2Timeline
- 12-06-2018PublishedVulnerability first disclosed.
- 03-06-2026Last modifiedVulnerability information updated.
Description
libvirt vulnerability and update Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via sidechannel attacks. An attacker in the guest could use this to expose sensitive guest information, including kernel memory. This update allows libvirt to expose new CPU features added by microcode updates to guests. (CVE-2018-3639) Daniel P. Berrange discovered that libvirt incorrectly handled the QEMU guest agent. An attacker could possibly use this issue to consume resources, leading to a denial of service. (CVE-2018-1064)
CVSS metrics
Risk metrics not yet published.
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: not stated in public data.
Ubuntu1 product
- libvirt< 1.2.2-0ubuntu13.1.27 | < 1.3.1-1ubuntu10.24 | < 4.0.0-1ubuntu8.2
1 vendor · 1 product