CVE-2017-15118 EXPLOIT
8.3
HIGH · CVSS 3.0 · EPSS 11.9% (pctl 96)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 8.3 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L |
| EPSS | 11.93% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-121 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-07-27 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| qemu | qemu |
| redhat | enterprise linux |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | QEMU - NBD Server Long Export Name Stack Buffer Overflow | 2017-11-29 |
References
- 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/
- https://www.exploit-db.com/exploits/43194/
- 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/
- https://www.exploit-db.com/exploits/43194/
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