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.

Affected

QEMU · Qemu

CVSS v3.0 NVD

9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0 REDHAT

8.3 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

11.93% chance of exploitation in the next 30 days, 96th percentile

Published

2018-07-27

Updated

2024-08-05

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/43194

Security advisories

• http://www.openwall.com/lists/oss-security/2017/11/28/8
• http://www.securityfocus.com/bid/101975
• https://access.redhat.com/errata/RHSA-2018:1104
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118
• https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.html
• https://usn.ubuntu.com/3575-1

References

• CVE Record
• NVD entry