CVE-2018-16882
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error
02 Description
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error
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
- 0.36% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 29.5% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. 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
- 2019-01-03 16:00Z7 YR AGO
- Last updated
- 2024-08-05 10:32Z2 YR AGO
- Reserved
- 2018-09-11
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.1)
- CNA CVSS vector
- CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:H
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- 1c20b13e648e869d17bc9016cb95195130c1a8b7297656103e7ce9d4d64b4212
05 Affected products
06 References
- marc.infohttps://marc.info/?l=kvm&m=154514994222809&w=2
- usn.ubuntu.comUSN-3872-1https://usn.ubuntu.com/3872-1/
- usn.ubuntu.comUSN-3878-1https://usn.ubuntu.com/3878-1/
- usn.ubuntu.comUSN-3871-5https://usn.ubuntu.com/3871-5/
- usn.ubuntu.comUSN-3878-2https://usn.ubuntu.com/3878-2/
- usn.ubuntu.comUSN-3871-4https://usn.ubuntu.com/3871-4/
- www.securityfocus.com106254http://www.securityfocus.com/bid/106254
- lwn.nethttps://lwn.net/Articles/775720/
- usn.ubuntu.comUSN-3871-1https://usn.ubuntu.com/3871-1/
- lwn.nethttps://lwn.net/Articles/775721/
- usn.ubuntu.comUSN-3871-3https://usn.ubuntu.com/3871-3/
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16882
- support.f5.comhttps://support.f5.com/csp/article/K80557033
07 Fixed in
Debian 12
- linux Fixed in 4.19.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.19.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.19.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux-azure Fixed in 4.15.0-1037.39~14.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-aws-hwe Fixed in 4.15.0-1032.34~16.04.1
- linux-azure Fixed in 4.15.0-1037.39~16.04.1
- linux-gcp Fixed in 4.15.0-1027.28~16.04.1
- linux-hwe Fixed in 4.15.0-45.48~16.04.1
- linux-oracle Fixed in 4.15.0-1008.10~16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-44.47
- linux-aws Fixed in 4.15.0-1032.34
- linux-azure Fixed in 4.15.0-1037.39
- linux-gcp Fixed in 4.15.0-1027.28
- linux-gcp-edge Fixed in 4.18.0-1006.7~18.04.1
- linux-hwe Fixed in 4.18.0-14.15~18.04.1
- linux-kvm Fixed in 4.15.0-1029.29
- linux-oem Fixed in 4.15.0-1033.38
- linux-oracle Fixed in 4.15.0-1008.10
- linux-raspi2 Fixed in 4.15.0-1031.33
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. 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.