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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…
High7.2EPSS 0.62%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
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 (6 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.
Weakness
Affected products
- affected from version 2.6.34 to 5.2.x
References (40)
- 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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2019-14835)Record last updated .