CVE-2022-35414
HIGH severity · CVSS 8.8 · CWE-908
8.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.c ↗
Additional information
- NVD record
- https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.cPatch
- https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482Patch
- https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482.aaPatch
- https://github.com/qemu/qemu/commit/418ade7849ce7641c0f7333718caf5091a02fd4cPatch
- https://gitlab.com/qemu-project/qemu/-/issues/1065Patch
- https://sick.codes/sick-2022-113Patch
- https://github.com/qemu/qemu/blob/v7.0.0/include/exec/cpu-all.h#L145-L148Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlAdvisory