CVE-2015-5166
Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device
02 Description
Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.42% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 36.6% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2015-08-12 14:00Z11 YR AGO
- Last updated
- 2024-08-06 06:41Z2 YR AGO
- Reserved
- 2015-07-01
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- b87ebfba54395e0ca3be68253ad00c0b6e40c4c8f794173c75abdfdd796dd6cf
05 Affected products
06 References
- lists.fedoraproject.orgFEDORA-2015-15944http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html
- lists.fedoraproject.orgFEDORA-2015-14361http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.html
- lists.fedoraproject.orgFEDORA-2015-15946http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html
- www.securityfocus.com76152http://www.securityfocus.com/bid/76152
- www.securitytracker.com1033175http://www.securitytracker.com/id/1033175
- xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-139.html
07 Fixed in
Debian 12
- qemu Fixed in 1:2.4+dfsg-1a
- xen Fixed in 4.4.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 1:2.4+dfsg-1a
- xen Fixed in 4.4.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 1:2.4+dfsg-1a
- xen Fixed in 4.4.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.