CVE-2017-15118
highpriority · attend · 53EPSS 0.119 · 96 %ileexploit · functionalEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- EDB-43194QEMU - NBD Server Long Export Name Stack Buffer Overflowfunctional · exploit_db
affected products (6)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (21)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2017/11/28/8cnnvd
- https://access.redhat.com/errata/RHSA-2018:1104cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118cnnvd
- https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.htmlcnnvd
- https://usn.ubuntu.com/3575-1/cnnvd
- https://www.exploit-db.com/exploits/43194/cnnvd
- https://www.securityfocus.com/bid/101975cnnvd
- http://www.openwall.com/lists/oss-security/2017/11/28/8enisa_euvd
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