ID |
CVE-2020-25653
|
Summary |
A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections. This flaw may allow an unprivileged local guest user to become the active agent for spice-vdagentd, possibly resulting in a denial of service or information leakage from the host. The highest threat from this vulnerability is to data confidentiality as well as system availability. This flaw affects spice-vdagent versions 0.20 and prior. |
References |
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Vulnerable Configurations |
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cpe:2.3:a:spice-space:spice-vdagent:0.17.0:*:*:*:*:*:*:*
cpe:2.3:a:spice-space:spice-vdagent:0.17.0:*:*:*:*:*:*:*
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cpe:2.3:a:spice-space:spice-vdagent:0.20.0:*:*:*:*:*:*:*
cpe:2.3:a:spice-space:spice-vdagent:0.20.0:*:*:*:*:*:*:*
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cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
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cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
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cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
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CVSS |
Base: | 5.4 (as of 19-10-2021 - 12:12) |
Impact: | |
Exploitability: | |
|
CWE |
CWE-362 |
CAPEC |
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Leveraging Race Conditions
The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with his version and cause the system to read the malicious file.
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Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.
|
Access |
Vector | Complexity | Authentication |
LOCAL |
MEDIUM |
NONE |
|
Impact |
Confidentiality | Integrity | Availability |
PARTIAL |
NONE |
COMPLETE |
|
cvss-vector
via4
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AV:L/AC:M/Au:N/C:P/I:N/A:C
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refmap
via4
|
misc | | mlist | [debian-lts-announce] 20210113 [SECURITY] [DLA 2524-1] spice-vdagent security update |
|
Last major update |
19-10-2021 - 12:12 |
Published |
26-11-2020 - 02:15 |
Last modified |
19-10-2021 - 12:12 |