High severity · published Jul 11, 2022
CVE-2022-35414
softmmu/physmem.c in QEMU through 7.0.0 can perform an uninitialized read on the translate_fail path, leading to an io_readx or io_writex crash
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
softmmu/physmem.c in QEMU through 7.0.0 can perform an uninitialized read on the translate_fail path, leading to an io_readx or io_writex crash. NOTE: a third party states that the Non-virtualization Use Case in the qemu.org reference applies here, i.e., "Bugs affecting the non-virtualization use case are not considered security bugs at this time.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
QE
Qemu · Qemu
4.1.50 through 7.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-35414
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-35414
Patch
https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.c
Release Notes
https://github.com/qemu/qemu/blob/v7.0.0/include/exec/cpu-all.h#L145-L148
Patch
https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482
Patch
https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482.aa
Patch
https://github.com/qemu/qemu/commit/418ade7849ce7641c0f7333718caf5091a02fd4c
Issue Tracking
https://gitlab.com/qemu-project/qemu/-/issues/1065
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