Medium severity · published Mar 21, 2023
CVE-2022-42331
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its…
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
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 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
37; 38 · source: NVD
XE
Xen · Xen
4.5.0 through 4.17.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-42331
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-42331
Mailing List
http://www.openwall.com/lists/oss-security/2023/03/21/3
Vendor Advisory
http://xenbits.xen.org/xsa/advisory-429.html
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/
security.gentoo.org
https://security.gentoo.org/glsa/202402-07
Third Party Advisory
https://www.debian.org/security/2023/dsa-5378
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