CVE-2016-2857
Vulnerability Summary
Timeline
Description
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.
CVSS Metrics
- v3.1•HIGH•Score: 8.4CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
- v2.0•LOW•Score: 3.6AV:L/AC:L/Au:N/C:P/I:N/A:P
EPSS Trends
Current EPSS score: 0.56%• Percentile: 46%
Techniques & Countermeasures
- CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
Affected Systems
- canonical•ubuntu_linux
12.04 | 14.04 | 15.10 | 16.04
- debian•qemu
< 1:2.6+dfsg-1 | < 1:2.6+dfsg-1 | < 1:2.6+dfsg-1 | < 1:2.6+dfsg-1
- debian•debian_linux
8.0
- qemu•qemu
≤ 2.5.1.1
- redhat•enterprise_linux_desktop
6.0 | 7.0
- redhat•enterprise_linux_eus
7.3 | 7.4 | 7.5 | 7.6 | 7.7
- redhat•enterprise_linux_server
6.0 | 7.0
- redhat•enterprise_linux_server_aus
7.3 | 7.4 | 7.6 | 7.7
- redhat•enterprise_linux_server_tus
7.3 | 7.6 | 7.7
- redhat•enterprise_linux_workstation
6.0 | 7.0
- redhat•openstack
5.0 | 6.0 | 7.0 | 8 | 9
- redhat•virtualization
3.0 | 4.0
References (17)
- http://rhn.redhat.com/errata/RHSA-2017-0334.html
- http://rhn.redhat.com/errata/RHSA-2016-2671.html
- http://rhn.redhat.com/errata/RHSA-2017-0083.html
- http://www.openwall.com/lists/oss-security/2016/03/03/9
- http://rhn.redhat.com/errata/RHSA-2016-2706.html
- http://www.openwall.com/lists/oss-security/2016/03/07/3
- http://www.securityfocus.com/bid/84130
- http://rhn.redhat.com/errata/RHSA-2017-0350.html
- http://rhn.redhat.com/errata/RHSA-2016-2705.html
- http://www.ubuntu.com/usn/USN-2974-1
- http://rhn.redhat.com/errata/RHSA-2017-0309.html
- http://rhn.redhat.com/errata/RHSA-2016-2670.html
- http://rhn.redhat.com/errata/RHSA-2017-0344.html
- http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=362786f14a753d8a5256ef97d7c10ed576d6572b
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- http://rhn.redhat.com/errata/RHSA-2016-2704.html
- https://security-tracker.debian.org/tracker/CVE-2016-2857