CVE-2017-12190
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2017-12190
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12190.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2017-12190
- Downstream
- Related
- Published
- 2017-11-22T18:29:00Z
- Modified
- 2025-04-20T01:37:25Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The biomapuseriov and biounmapuser functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bioaddpcpage function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition.
- References
-
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95d78c28b5a85bacbc29b8dba7c04babb9b0d467
- http://seclists.org/oss-sec/2017/q4/52
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8
- http://www.securityfocus.com/bid/101911
- https://access.redhat.com/errata/RHSA-2018:0654
- https://access.redhat.com/errata/RHSA-2018:0676
- https://access.redhat.com/errata/RHSA-2018:1062
- https://access.redhat.com/errata/RHSA-2018:1854
- https://access.redhat.com/errata/RHSA-2019:1170
- https://access.redhat.com/errata/RHSA-2019:1190
- https://bugzilla.redhat.com/show_bug.cgi?id=1495089
- https://github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058
- https://github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
- https://support.f5.com/csp/article/K93472064?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/3582-1/
- https://usn.ubuntu.com/3582-2/
- https://usn.ubuntu.com/3583-1/
- https://usn.ubuntu.com/3583-2/
- https://security-tracker.debian.org/tracker/CVE-2017-12190
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source