CVE-2023-3255
published 2023-09-13CVE-2023-3255: A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an…
PriorityP335medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
1.89%
77.2th percentile
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | qemu | < qemu 1:7.2+dfsg-7+deb12u2 (bookworm) | qemu 1:7.2+dfsg-7+deb12u2 (bookworm) |
| fedoraproject | fedora | — | — |
| msrc | azl3_qemu_6.2.0-18_on_azure_linux_3.0 | — | — |
| msrc | azl3_qemu_8.2.0-1_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_qemu_6.2.0-23_on_cbl_mariner_2.0 | — | — |
| qemu | qemu | <= 8.0.3 | — |
| qemu | qemu | >= 0 < 1:7.2+dfsg-7+deb12u2 | 1:7.2+dfsg-7+deb12u2 |
| qemu | qemu | >= 0 < 1:8.0.4+dfsg-1 | 1:8.0.4+dfsg-1 |
| qemu | qemu | >= 0 < 1:8.0.4+dfsg-1 | 1:8.0.4+dfsg-1 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.28 | 1:4.2-3ubuntu6.28 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.29 | 1:4.2-3ubuntu6.29 |
| qemu | qemu | >= 0 < 1:6.2+dfsg-2ubuntu6.16 | 1:6.2+dfsg-2ubuntu6.16 |
| qemu | qemu | >= 0 < 1:6.2+dfsg-2ubuntu6.21 | 1:6.2+dfsg-2ubuntu6.21 |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu3.2LOW
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Ubuntu
QEMU regression
vendor_ubuntu·2024-06-06·CVSS 3.2
CVE-2023-2861 [LOW] QEMU regression
Title: QEMU regression
Summary: USN-6567-1 introduced a regression in QEMU.
USN-6567-1 fixed vulnerabilities QEMU. The fix for CVE-2023-2861 was too
restrictive and introduced a behaviour change leading to a regression in
certain environments. This update fixes the problem.
Original advisory details:
Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the
USB xHCI controller device. A privileged guest attacker could possibly use
this issue to cause QEMU to crash, leading to a denial of service. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)
It was discovered that QEMU incorrectly handled the TCG Accelerator. A
local attacker could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2024-01-08·CVSS 3.2
CVE-2023-1544 [LOW] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the
USB xHCI controller device. A privileged guest attacker could possibly use
this issue to cause QEMU to crash, leading to a denial of service. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)
It was discovered that QEMU incorrectly handled the TCG Accelerator. A
local attacker could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code and esclate
privileges. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-24165)
It was discovered that QEMU incorrectly handled the Intel HD audio device.
A malicious guest attacker could use this issue to cause QEMU t
Microsoft
Qemu: vnc: infinite loop in inflate_buffer() leads to denial of service
vendor_msrc·2023-09-12·CVSS 6.5
CVE-2023-3255 [MEDIUM] CWE-835 Qemu: vnc: infinite loop in inflate_buffer() leads to denial of service
Qemu: vnc: infinite loop in inflate_buffer() leads to denial of service
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 which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Refere
Red Hat
QEMU: VNC: infinite loop in inflate_buffer() leads to denial of service
vendor_redhat·2023-07-04·CVSS 6.5
CVE-2023-3255 [MEDIUM] CWE-835 QEMU: VNC: infinite loop in inflate_buffer() leads to denial of service
QEMU: VNC: infinite loop in inflate_buffer() leads to denial of service
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
Statement: The
Debian
CVE-2023-3255: qemu - A flaw was found in the QEMU built-in VNC server while processing ClientCutText ...
vendor_debian·2023·CVSS 6.5
CVE-2023-3255 [MEDIUM] CVE-2023-3255: qemu - A flaw was found in the QEMU built-in VNC server while processing ClientCutText ...
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
Scope: local
bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u2)
bullseye: resolved
forky: resolved (fixed in 1:8.0.4+dfsg-1)
sid: resolved (fixed in 1:8.0.4+dfsg-1)
trixie: resolved (fixed in 1:8.0.4+dfsg-1)
OSV
qemu regression
osv·2024-06-06·CVSS 3.2
CVE-2023-2861 [LOW] qemu regression
qemu regression
USN-6567-1 fixed vulnerabilities QEMU. The fix for CVE-2023-2861 was too
restrictive and introduced a behaviour change leading to a regression in
certain environments. This update fixes the problem.
Original advisory details:
Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the
USB xHCI controller device. A privileged guest attacker could possibly use
this issue to cause QEMU to crash, leading to a denial of service. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)
It was discovered that QEMU incorrectly handled the TCG Accelerator. A
local attacker could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code and esclate
privileges. This issue only affected Ubuntu 20.04
OSV
qemu vulnerabilities
osv·2024-01-08·CVSS 3.2
CVE-2020-14394 [LOW] qemu vulnerabilities
qemu vulnerabilities
Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the
USB xHCI controller device. A privileged guest attacker could possibly use
this issue to cause QEMU to crash, leading to a denial of service. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)
It was discovered that QEMU incorrectly handled the TCG Accelerator. A
local attacker could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code and esclate
privileges. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-24165)
It was discovered that QEMU incorrectly handled the Intel HD audio device.
A malicious guest attacker could use this issue to cause QEMU to crash,
leading to a denial of service. This issue only affe
GHSA
GHSA-p5xv-5g6h-qw33: A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages
ghsa_unreviewed·2023-09-13
CVE-2023-3255 [MEDIUM] CWE-835 GHSA-p5xv-5g6h-qw33: A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
OSV
CVE-2023-3255: A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages
osv·2023-09-13·CVSS 6.5
CVE-2023-3255 [MEDIUM] CVE-2023-3255: A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://access.redhat.com/errata/RHSA-2024:2135https://access.redhat.com/errata/RHSA-2024:2962https://access.redhat.com/security/cve/CVE-2023-3255https://bugzilla.redhat.com/show_bug.cgi?id=2218486https://access.redhat.com/errata/RHSA-2024:2135https://access.redhat.com/errata/RHSA-2024:2962https://access.redhat.com/security/cve/CVE-2023-3255https://bugzilla.redhat.com/show_bug.cgi?id=2218486https://security.netapp.com/advisory/ntap-20231020-0008/
2023-09-13
Published