Medium severity · published Dec 19, 2024
CVE-2024-45819
libxl leaks data to PVH guests via ACPI tables
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
PVH guests have their ACPI tables constructed by the toolstack. The
construction involves building the tables in local memory, which are
then copied into guest memory. While actually used parts of the local
memory are filled in correctly, excess space that is being allocated is
left with its prior contents.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
4.8.0 and later · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-45819
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-45819
Patch
https://xenbits.xenproject.org/xsa/advisory-464.html
Mailing List
http://www.openwall.com/lists/oss-security/2024/11/12/1
Mailing List
http://www.openwall.com/lists/oss-security/2024/11/12/10
Mailing List
http://www.openwall.com/lists/oss-security/2024/11/12/7
Patch
http://xenbits.xen.org/xsa/advisory-464.html
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