CVE-2023-6693
QEMU Virtio-Net Stack Buffer Overflow Vulnerability
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.
INFO
Published Date :
Jan. 2, 2024, 10:15 a.m.
Last Modified :
Sept. 14, 2024, 12:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.4
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2023-6693
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-6693.
| URL | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:2962 | |
| https://access.redhat.com/security/cve/CVE-2023-6693 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2254580 | Issue Tracking Patch |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-6693 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-6693 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Sep. 14, 2024
Action Type Old Value New Value Removed Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20240208-0004/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/ -
CVE Modified by [email protected]
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 22, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2962 [No types assigned] -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Mar. 08, 2024
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/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 Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:* OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 8.2.1 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 20, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/ [No types assigned] -
CVE Modified by [email protected]
Feb. 08, 2024
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 [email protected]
Jan. 08, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L 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 https://bugzilla.redhat.com/show_bug.cgi?id=2254580 Issue Tracking, Patch Added CWE NIST CWE-787 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:*:*:*:*:*:*:* -
CVE Received by [email protected]
Jan. 02, 2024
Action Type Old Value New Value Added 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. 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] Added CWE Red Hat, Inc. CWE-121 Added CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-6693 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-6693
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.11968
percentile