CVE-2017-12136
Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host
02 Description
Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host
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
- 0.31% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 23.7% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:H/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
- 2017-08-24 14:00Z9 YR AGO
- Last updated
- 2024-08-05 18:28Z2 YR AGO
- Reserved
- 2017-08-01
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.1
- Document digest
- da33a46ace8e53b66cc1c183b5d97778eca53fdd627857e272c7fc6913e6a7a0
05 Affected products
06 References
- support.citrix.comhttps://support.citrix.com/article/CTX225941
- xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-228.html
- www.securityfocus.com100346http://www.securityfocus.com/bid/100346
- www.debian.orgDSA-3969http://www.debian.org/security/2017/dsa-3969
- www.openwall.com[oss-security] 20170815 Xen Security Advisory 228 (CVE-2017-12136) - grant_table: Race conditions with maptrack free list handlinghttp://www.openwall.com/lists/oss-security/2017/08/15/3
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1477651
- security.gentoo.orgGLSA-201801-14https://security.gentoo.org/glsa/201801-14
- www.securitytracker.com1039175http://www.securitytracker.com/id/1039175
07 Fixed in
Debian 12
- xen Fixed in 4.8.1-1+deb9u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- xen Fixed in 4.8.1-1+deb9u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- xen Fixed in 4.8.1-1+deb9u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- xen Fixed in 4.6.5-0ubuntu1.4
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.