CVE-2017-2630
A stack buffer overflow flaw was found in the Quick Emulator (QEMU) before 2.9 built with the Network Block Device (NBD) client support.…
- 5.5MediumCVSS base score
- 2.6%Exploitation in 30 daysEPSS · top 14% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A stack buffer overflow flaw was found in the Quick Emulator (QEMU) before 2.9 built with the Network Block Device (NBD) client support. The flaw could occur while processing server's response to a 'NBD_OPT_LIST' request. A malicious NBD server could use this issue to crash a remote NBD client resulting in DoS or potentially execute arbitrary code on client host with privileges of the QEMU process.
Timeline
ID reserved
By redhat
- 20 months later
· 20 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | Medium5.5 | CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L |
| NVDNVD · Modified | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.6% · top 14% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
References
8
- RHSA-2017:2392 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 96265 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201704-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [oss-security] 20170215 CVE-2017-2630 Qemu: nbd: oob stack write in client routine drop_sync (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [qemu-devel] 20170206 [PATCH 05/18] nbd/client: fix drop_sync (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2630 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1422415 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/qemu/qemu/commit/2563c9c6b8670400c48e562034b321a7cf3d9a85 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-11791 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-2630)Record last updated .