Home/CVE/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 t
CVE

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 t

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.

HIGH · CVSS 7.8 EPSS 0.00071
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

35
linux kernel>= 2.6.34 and < 3.16.74
linux kernel>= 4.4 and < 4.4.193
linux kernel>= 4.9 and < 4.9.193
linux kernel>= 4.14 and < 4.14.144
linux kernel>= 4.19 and < 4.19.73
linux kernel>= 5.2 and < 5.2.15
linux kernelall versions
canonical ubuntu linuxall versions
⚠

Public Exploits & PoCs

3
pocpacketstormsecurity.com · Kernel-Live-Patch-Security-Notice-LSN-0056-1.htmlpacketstormsecurity.com
pocpacketstormsecurity.com · Kernel-Live-Patch-Security-Notice-LSN-0058-1.htmlpacketstormsecurity.com
pocpacketstormsecurity.com · Slackware-Security-Advisory-Slackware-14.2-kernel-Updates...packetstormsecurity.com
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPowershell Detect Virtualization Environment
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Sep 2019 · 04:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

30
suse-csafSUSE-SU-2020:0183-1
suse-csafSUSE-SU-2020:0093-1
suse-csafSUSE-SU-2019:3200-1
suse-csafSUSE-SU-2019:2984-1
suse-csafSUSE-SU-2019:2949-1
🔗

References & Sources

32
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlMailing ListThird Party Advisory
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-enThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/09/24/1Mailing List
http://www.openwall.com/lists/oss-security/2019/10/03/1Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/10/09/3Mailing ListThird Party Advisory
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