CVE-2017-12134
The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information,
02 Description
The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information,
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
- 0.49% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 42.3% 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:3.0/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
- 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
- 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-682Incorrect CalculationPillar
- Data version
- 5.1
- Document digest
- 8c9992fd17fdabc6a3db0adff0748a9e83a85daab51d5a4a98936e7b560a6991
05 Affected products
06 References
- support.citrix.comhttps://support.citrix.com/article/CTX225941
- www.securitytracker.com1039176http://www.securitytracker.com/id/1039176
- xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-229.html
- www.debian.orgDSA-3981http://www.debian.org/security/2017/dsa-3981
- usn.ubuntu.comUSN-3655-1https://usn.ubuntu.com/3655-1/
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1477656
- security.gentoo.orgGLSA-201801-14https://security.gentoo.org/glsa/201801-14
- usn.ubuntu.comUSN-3655-2https://usn.ubuntu.com/3655-2/
- www.openwall.com[oss-security] 20170815 Xen Security Advisory 229 (CVE-2017-12134) - linux: Fix Xen block IO merge-ability calculationhttp://www.openwall.com/lists/oss-security/2017/08/15/4
- www.securityfocus.com100343http://www.securityfocus.com/bid/100343
07 Fixed in
Debian 12
- linux Fixed in 4.12.12-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.12.12-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.12.12-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux Fixed in 3.13.0-149.199
- linux-lts-xenial Fixed in 4.4.0-97.120~14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-97.120
- linux-aws Fixed in 4.4.0-1038.47
- linux-azure Fixed in 4.13.0-1005.7
- linux-gcp Fixed in 4.13.0-1002.5
- linux-gke Fixed in 4.4.0-1032.32
- linux-hwe Fixed in 4.13.0-32.35~16.04.1
- linux-kvm Fixed in 4.4.0-1008.13
- linux-raspi2 Fixed in 4.4.0-1075.83
- linux-snapdragon Fixed in 4.4.0-1077.82
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-azure-fde No fix yet
- linux-gke No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
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.