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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.66% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-908
- Affected
- qemu/qemu · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.cPatch, Third Party Advisory
- https://github.com/qemu/qemu/blob/v7.0.0/include/exec/cpu-all.h#L145-L148Release Notes, Third Party Advisory
- https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482Patch, Third Party Advisory
- https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482.aaPatch, Third Party Advisory
- https://github.com/qemu/qemu/commit/418ade7849ce7641c0f7333718caf5091a02fd4cPatch, Third Party Advisory
- https://gitlab.com/qemu-project/qemu/-/issues/1065Issue Tracking, Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
- https://sick.codes/sick-2022-113Exploit, Patch, Third Party Advisory
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg895266.html
- https://www.qemu.org/docs/master/system/security.html#non-virtualization-use-caseVendor Advisory
- https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.cPatch, Third Party Advisory
- https://github.com/qemu/qemu/blob/v7.0.0/include/exec/cpu-all.h#L145-L148Release Notes, Third Party Advisory
- https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482Patch, Third Party Advisory
- https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482.aaPatch, Third Party Advisory
- https://github.com/qemu/qemu/commit/418ade7849ce7641c0f7333718caf5091a02fd4cPatch, Third Party Advisory
- https://gitlab.com/qemu-project/qemu/-/issues/1065Issue Tracking, Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
- https://sick.codes/sick-2022-113Exploit, Patch, Third Party Advisory
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg895266.html
- https://www.qemu.org/docs/master/system/security.html#non-virtualization-use-caseVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.