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CVE-2019-14835
A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates…
- 7.2HighCVSS base score
- 0.62%Exploitation in 30 daysEPSS · top 50% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.
Timeline
ID reserved
By redhat
- 38 days later
· 38 days later
Published
- 5 years later
· 5 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 | High7.2 | CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.62% · top 50% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Affected products
- affected from version 2.6.34 to 5.2.x
References
References40
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14835 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.openwall.com/lists/oss-security/2019/09/17/1 (opens in a new tab)x_refsource_MISCx_transferred
- USN-4135-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2019-e3010166bd (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- RHSA-2019:2827 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2828 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2830 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2829 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2854 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2862 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2863 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2866 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2864 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2865 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2867 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2869 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20190924 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2019:2173 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2019:2889 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- openSUSE-SU-2019:2181 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20190925 [SECURITY] [DSA 4531-1] linux security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-4531 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2019:2900 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2901 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2899 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2924 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-4135-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20191001 [SECURITY] [DLA 1940-1] linux-4.9 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2019-a570a92d5a (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [oss-security] 20191003 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20191009 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20191009 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHBA-2019:2824 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20191031-0005/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html (opens in a new tab)x_refsource_MISCx_transferred
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en (opens in a new tab)x_refsource_CONFIRMx_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-2019-5961 (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-2019-14835)Record last updated .