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CVE-2023-6693
Detail
Description
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.
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OR
*cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Changed
CPE Configuration
OR
*cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*
OR
*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 8.2.1
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/ Mailing List, Third Party Advisory
Changed
Reference Type
https://security.netapp.com/advisory/ntap-20240208-0004/ No Types Assigned
https://security.netapp.com/advisory/ntap-20240208-0004/ Third Party Advisory
CVE Modified by Red Hat, Inc.2/19/2024 10:15:07 PM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/ [No types assigned]
CVE Modified by Red Hat, Inc.2/08/2024 5:15:11 AM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. https://security.netapp.com/advisory/ntap-20240208-0004/ [No types assigned]
Initial Analysis by NIST1/08/2024 2:04:42 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Added
CVSS V3.1
NIST AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Added
CWE
NIST CWE-787
Changed
Reference Type
https://access.redhat.com/security/cve/CVE-2023-6693 No Types Assigned
https://access.redhat.com/security/cve/CVE-2023-6693 Third Party Advisory
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=2254580 No Types Assigned
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.
Added
Reference
Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2023-6693 [No types assigned]
Added
Reference
Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2254580 [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2023-6693 NVD
Published Date: 01/02/2024 NVD
Last Modified: 03/08/2024
Source: Red Hat, Inc.