HIGH
CVE-2019-14835
CWE-120Published: September 17, 2019· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official 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.
Technical Analysis
CVE-2019-14835 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
Huawei3 product(s)
imanager netecoimanager neteco 6000manageone
Linux1 product(s)
linux kernel
netapp25 product(s)
aff a700s firmwareaff a700sh410c firmwareh410ch610s firmwareh610sh300s firmwareh300sh500s firmwareh500sh700s firmwareh700s+13
openSUSE1 product(s)
leap
Red Hat11 product(s)
openshift container platformenterprise linuxenterprise linux desktopenterprise linux eusenterprise linux for real timeenterprise linux serverenterprise linux server ausenterprise linux server tusenterprise linux workstationvirtualizationvirtualization host
Source: NVD CPE · 77 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttp://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html
ADVISORYhttp://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
ADVISORYhttps://usn.ubuntu.com/4135-1/
ADVISORYhttps://usn.ubuntu.com/4135-2/
ADVISORYhttp://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html
ADVISORYhttp://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
ADVISORYhttps://usn.ubuntu.com/4135-1/
ADVISORYhttps://usn.ubuntu.com/4135-2/
All References (80)
→
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlMailing List · Third Party Advisory
→
http://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.htmlThird Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.htmlThird Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlThird Party Advisory · VDB Entry
→
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-enThird Party Advisory
→
http://www.openwall.com/lists/oss-security/2019/10/03/1Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2019/10/09/3Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2019/10/09/7Mailing List · Third Party Advisory
→
https://access.redhat.com/errata/RHBA-2019:2824Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:2827Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:2828Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:2829Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:2830Third Party Advisory
Quick Facts
CVE IDCVE-2019-14835
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-120
CISA KEVNo
Affected8 vendor(s)
PublishedSep 17, 2019
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-14835 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.