CVE-2017-15118

A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.html	Exploit Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118	Issue Tracking Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/11/28/8	Mailing List Patch Third Party Advisory
https://www.exploit-db.com/exploits/43194/	Exploit Third Party Advisory VDB Entry
https://usn.ubuntu.com/3575-1/	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1104	Third Party Advisory
http://www.securityfocus.com/bid/101975	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::

Information

Published : 2018-07-27 14:29

Updated : 2019-10-09 16:24

NVD link : CVE-2017-15118

Mitre link : CVE-2017-15118

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Products Affected

canonical

ubuntu_linux

redhat

enterprise_linux

qemu

qemu

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9.8 /10