High severity · published Jul 18, 2024
CVE-2024-31143
An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
An optional feature of PCI MSI called "Multiple Message" allows a
device to use multiple consecutive interrupt vectors. Unlike for MSI-X,
the setting up of these consecutive vectors needs to happen all in one
go. In this handling an error path could be taken in different
situations, with or without a particular lock held. This error path
wrongly releases the lock even when it is not currently held.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
4.4.0 and later · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-31143
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-31143
Patch
https://xenbits.xenproject.org/xsa/advisory-458.html
Mailing List
http://www.openwall.com/lists/oss-security/2024/07/16/3
Patch
http://xenbits.xen.org/xsa/advisory-458.html
More from Xen
10.0
CVE-2017-10921
The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a…
10.0
CVE-2017-10920
The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS…
10.0
CVE-2017-10918
Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222
10.0
CVE-2017-10912
Xen through 4.8.x mishandles page transfer, which allows guest OS users to obtain privileged host OS access, aka XSA-217
10.0
CVE-2015-8104
The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB…