CVE-2017-10911
Vulnerability Summary
Timeline
Description
The make_response function in drivers/block/xen-blkback/blkback.c in the Linux kernel before 4.11.8 allows guest OS users to obtain sensitive information from host OS (or other guest OS) kernel memory by leveraging the copying of uninitialized padding fields in Xen block-interface response structures, aka XSA-216.
CVSS Metrics
- v3.0•MEDIUM•Score: 6.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:C/I:N/A:N
EPSS Trends
Current EPSS score: 0.45%• Percentile: 38%
Techniques & Countermeasures
- CWE-200•Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected Systems
- debian•linux
< 4.11.11-1 | < 4.11.11-1 | < 4.11.11-1 | < 4.11.11-1
- debian•qemu
< 1:2.8+dfsg-7 | < 1:2.8+dfsg-7 | < 1:2.8+dfsg-7 | < 1:2.8+dfsg-7
- ubuntu•linux
< 3.13.0-135.184 | < 4.4.0-98.121
- ubuntu•linux-aws
< 4.4.0-1039.48
- ubuntu•linux-azure-6.11
all
- ubuntu•linux-azure-fde-5.15
all
- ubuntu•linux-gcp
< 4.10.0-1008.8
- ubuntu•linux-gcp-6.11
all
- ubuntu•linux-gke
< 4.4.0-1033.33
- ubuntu•linux-hwe
< 4.13.0-32.35~16.04.1
- ubuntu•linux-hwe-6.11
all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1009.14
- ubuntu•linux-lowlatency-hwe-6.11
all
- ubuntu•linux-lts-xenial
< 4.4.0-98.121~14.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1076.84
- ubuntu•linux-realtime
all
- ubuntu•linux-snapdragon
< 4.4.0-1078.83
- ubuntu•qemu
< 2.0.0+dfsg-2ubuntu1.35 | < 1:2.5+dfsg-5ubuntu10.15
- linux•linux_kernel
≤ 4.11.7
References (22)
- https://xenbits.xen.org/xsa/advisory-216.html
- http://www.debian.org/security/2017/dsa-3927
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=089bc0143f489bd3a4578bdff5f4ca68fb26f341
- http://www.debian.org/security/2017/dsa-3920
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- https://security.gentoo.org/glsa/201708-03
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.8
- http://www.securityfocus.com/bid/99162
- http://www.securitytracker.com/id/1038720
- https://github.com/torvalds/linux/commit/089bc0143f489bd3a4578bdff5f4ca68fb26f341
- http://www.debian.org/security/2017/dsa-3945
- https://ubuntu.com/security/CVE-2017-10911
- https://ubuntu.com/security/notices/USN-3414-1
- https://ubuntu.com/security/notices/USN-3468-1
- https://ubuntu.com/security/notices/USN-3468-2
- https://ubuntu.com/security/notices/USN-3469-1
- https://ubuntu.com/security/notices/USN-3469-2
- https://ubuntu.com/security/notices/USN-3468-3
- https://ubuntu.com/security/notices/USN-3470-1
- https://ubuntu.com/security/notices/USN-3470-2
- https://www.cve.org/CVERecord?id=CVE-2017-10911
- https://security-tracker.debian.org/tracker/CVE-2017-10911