CVE-2020-25653
published 2020-11-26CVE-2020-25653: 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…
PriorityP429medium6.3CVSS 3.1
AVLACHPRLUINSUCHINAH
EPSS
0.33%
24.8th percentile
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.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | spice-vdagent | < spice-vdagent 0.20.0-2 (bookworm) | spice-vdagent 0.20.0-2 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| msrc | cbl2_spice-vdagent_0.22.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| spice-space | spice-vdagent | <= 0.20.0 | — |
| spice-space | spice-vdagent | — | — |
| spice-space | spice-vdagent | >= 0 < 0.20.0-2 | 0.20.0-2 |
| spice-space | spice-vdagent | >= 0 < 0.20.0-2 | 0.20.0-2 |
| spice-space | spice-vdagent | >= 0 < 0.20.0-2 | 0.20.0-2 |
| spice-space | spice-vdagent | >= 0 < 0.20.0-2 | 0.20.0-2 |
| spice-space | spice-vdagent | >= 0 < 0.17.0-1ubuntu2.2 | 0.17.0-1ubuntu2.2 |
| spice-space | spice-vdagent | >= 0 < 0.19.0-2ubuntu0.2 | 0.19.0-2ubuntu0.2 |
CVSS provenance
nvdv3.16.3MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
nvdv2.05.4MEDIUMAV:L/AC:M/Au:N/C:P/I:N/A:C
osv6.3MEDIUM
vendor_debian6.3MEDIUM
vendor_msrc6.3MEDIUM
vendor_redhat6.3MEDIUM
vendor_ubuntu5.5MEDIUM
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Microsoft
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-
vendor_msrc·2020-11-10·CVSS 6.3
CVE-2020-25653 [MEDIUM] CWE-362 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-
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with w
Ubuntu
SPICE vdagent vulnerabilities
vendor_ubuntu·2020-11-04·CVSS 5.5
CVE-2020-25652 [MEDIUM] SPICE vdagent vulnerabilities
Title: SPICE vdagent vulnerabilities
Summary: Several security issues were fixed in SPICE vdagent.
Matthias Gerstner discovered that SPICE vdagent incorrectly handled the
active_xfers hash table. A local attacker could possibly use this issue to
cause SPICE vdagent to consume memory, resulting in a denial of service.
(CVE-2020-25650)
Matthias Gerstner discovered that SPICE vdagent incorrectly handled the
active_xfers hash table. A local attacker could possibly use this issue to
cause SPICE vdagent to consume memory, resulting in a denial of service, or
obtain sensitive file contents. (CVE-2020-25651)
Matthias Gerstner discovered that SPICE vdagent incorrectly handled a large
number of client connections. A local attacker could possibly use this
issue to cause SPICE vdagent to consume r
Red Hat
spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition
vendor_redhat·2020-11-03·CVSS 6.3
CVE-2020-25653 [MEDIUM] CWE-362 spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition
spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition
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.
A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections. This flaw allows an unprivileged local guest user to become the active agent for spice-vdagentd, possibly resulting in a denial of service or
Debian
CVE-2020-25653: spice-vdagent - A race condition vulnerability was found in the way the spice-vdagentd daemon ha...
vendor_debian·2020·CVSS 6.3
CVE-2020-25653 [MEDIUM] CVE-2020-25653: spice-vdagent - A race condition vulnerability was found in the way the spice-vdagentd daemon ha...
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.
Scope: local
bookworm: resolved (fixed in 0.20.0-2)
bullseye: resolved (fixed in 0.20.0-2)
forky: resolved (fixed in 0.20.0-2)
sid: resolved (fixed in 0.20.0-2)
trixie: resolved (fixed in 0.20.0-2)
GHSA
GHSA-5v7v-8wfp-pqqp: A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections
ghsa_unreviewed·2022-05-24
CVE-2020-25653 [MEDIUM] CWE-200 GHSA-5v7v-8wfp-pqqp: A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections
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.
OSV
CVE-2020-25653: A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections
osv·2020-11-26·CVSS 6.3
CVE-2020-25653 [MEDIUM] CVE-2020-25653: A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections
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.
OSV
spice-vdagent vulnerabilities
osv·2020-11-04·CVSS 5.5
CVE-2020-25650 [MEDIUM] spice-vdagent vulnerabilities
spice-vdagent vulnerabilities
Matthias Gerstner discovered that SPICE vdagent incorrectly handled the
active_xfers hash table. A local attacker could possibly use this issue to
cause SPICE vdagent to consume memory, resulting in a denial of service.
(CVE-2020-25650)
Matthias Gerstner discovered that SPICE vdagent incorrectly handled the
active_xfers hash table. A local attacker could possibly use this issue to
cause SPICE vdagent to consume memory, resulting in a denial of service, or
obtain sensitive file contents. (CVE-2020-25651)
Matthias Gerstner discovered that SPICE vdagent incorrectly handled a large
number of client connections. A local attacker could possibly use this
issue to cause SPICE vdagent to consume resources, resulting in a denial of
service. (CVE-2020-25652)
Matthias
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-25653 spice-vdagent: UNIX domain socket peer PID retrieved via `SO_PEERCRED` is subject to race condition [fedora-all]
bugzilla·2020-11-04·CVSS 6.3
CVE-2020-25653 [MEDIUM] CVE-2020-25653 spice-vdagent: UNIX domain socket peer PID retrieved via `SO_PEERCRED` is subject to race condition [fedora-all]
CVE-2020-25653 spice-vdagent: UNIX domain socket peer PID retrieved via `SO_PEERCRED` is subject to race condition [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NO
Bugzilla
CVE-2020-25653 spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition
bugzilla·2020-10-08·CVSS 6.3
CVE-2020-25653 [MEDIUM] CVE-2020-25653 spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition
CVE-2020-25653 spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition
The following flaw was reported by SUSE Security:
One major security property of `spice-vdagentd` is that it only allows those clients access to most of the SPICE features (like clipboard, file transfer) that are currently in an active session according to systemd. It is possible for arbitrary local users (like *nobody*) to connect to
`spice-vdagentd` but these connections should not be able to interact with the host machine, because they don't belong to the active session.
There is a race condition between the point in time when a client performs the `connect()` call to establish a connection with `spice-vdagentd` and the time `spice-vdagentd` retrieves and checks the PID in
https://bugzilla.redhat.com/show_bug.cgi?id=1886372https://lists.debian.org/debian-lts-announce/2021/01/msg00012.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQT56LATVTB2DJOVVJOKQVMVUXYCT2VB/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIWJ2EIQXWEA2VDBODEATHAT37X4CREP/https://www.openwall.com/lists/oss-security/2020/11/04/1https://bugzilla.redhat.com/show_bug.cgi?id=1886372https://lists.debian.org/debian-lts-announce/2021/01/msg00012.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQT56LATVTB2DJOVVJOKQVMVUXYCT2VB/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIWJ2EIQXWEA2VDBODEATHAT37X4CREP/https://www.openwall.com/lists/oss-security/2020/11/04/1
2020-11-26
Published