What’s Vulnerable › Vulnerabilities

CVE-2022-35414

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-07-11 · updated 2026-06-17
• Weakness: CWE-908

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.

Affected products

• Debian Linux: 10.0
• QEMU: from 4.1.50 through 7.0.0

References

• https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.c
• https://github.com/qemu/qemu/blob/v7.0.0/include/exec/cpu-all.h#L145-L148
• https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482
• https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482.aa
• https://github.com/qemu/qemu/commit/418ade7849ce7641c0f7333718caf5091a02fd4c
• https://gitlab.com/qemu-project/qemu/-/issues/1065
• https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
• https://sick.codes/sick-2022-113
• https://www.mail-archive.com/qemu-devel%40nongnu.org/msg895266.html
• https://www.qemu.org/docs/master/system/security.html#non-virtualization-use-case
• https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.c
• https://github.com/qemu/qemu/blob/v7.0.0/include/exec/cpu-all.h#L145-L148

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