Overview
- Description
- A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
- Source
- secalert@redhat.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 6.5
- Impact score
- 4
- Exploitability score
- 2
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 4.9
- Impact score
- 6.9
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:N/I:N/A:C
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:qemu:qemu:6.1.0:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "79CA7599-5B3C-4CFD-87BE-AF873AB01A14"
},
{
"criteria": "cpe:2.3:a:qemu:qemu:6.1.0:rc0:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "608EDBA5-2746-4185-B1E7-1D5C77515BCF"
},
{
"criteria": "cpe:2.3:a:qemu:qemu:6.1.0:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "08652ABF-7A2E-4E02-BF3A-DC7C59A4DC45"
},
{
"criteria": "cpe:2.3:a:qemu:qemu:6.1.0:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D278D47D-2E46-445F-AC12-BB89EE08F8D1"
},
{
"criteria": "cpe:2.3:a:qemu:qemu:6.1.0:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F1F2D762-2951-449C-A79D-C4FC347D6431"
},
{
"criteria": "cpe:2.3:a:qemu:qemu:6.1.0:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5AFBBA57-5E54-4B05-ABEB-826E08CE7A07"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*",
"vulnerable": true,
"matchCriteriaId": "053C1B35-3869-41C2-9551-044182DE0A64"
}
],
"operator": "OR"
}
]
}
]