CVE-2017-12136: citrix xenserver Race Condition
CVSS: 7.8v3.0HighModified
AliasesALPINE-CVE-2017-12136UBUNTU-CVE-2017-12136DEBIAN-CVE-2017-12136
Published 24-08-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-12136 is a high (CVSS 7.8) Race Condition vulnerability in citrix xenserver. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.5% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.0 (NVD)EPSS score
0.31%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 24-08-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 via vectors involving maptrack free list handling.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Medium 6.9Preferred score · NVD (NIST)
AV:L/AC:M/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
0.00 pp
From 0.31% on 19-09-2026
19-09-202619-10-2026
EPSS score0.31%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- xen< 4.8.1-1+deb9u3
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- xen< 4.9.0-r1 | < 4.6.6-r0 | < 4.7.3-r0 | < 4.8.2-r0
Citrix1 product
- xenserver6.0.2 | 6.2.0 | 6.5 | 7.0 | 7.1 | 7.2
Ubuntu1 product
- xen< 4.6.5-0ubuntu1.4
Xen1 product
- xen4.6.0 | 4.6.1 | 4.6.3 | 4.6.4 | 4.6.5 | 4.6.6 | 4.7.0 | 4.7.1 | 4.7.2 | 4.7.3 | 4.8.0 | 4.8.1 | 4.9.0
5 vendors · 6 products
References
13 links
- www.openwall.com/lists/oss-security/2017/08/15/3Mailing ListX Refsource MLISTPatchThird Party Advisory