7.6High

CVE-2023-6478Xorg-x11-server: out-of-bounds memory read in rrchangeoutputproperty and rrchangeproviderproperty

Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION; Red Hat Red Hat Enterprise Linux 7; Red Hat Red Hat Enterprise Linux 8; Red Hat Red… Published: 2023-12-13 09:27 (2 years ago)

Description

A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive information.

Weakness (CWE): CWE-190

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
debian	debian linux	10.0
enterprise linux	7	—
enterprise linux	8	—
enterprise linux	9	—
redhat	enterprise linux eus	9.2
Red Hat	Red Hat Enterprise Linux 6	—
Red Hat	Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION	all versions
Red Hat	Red Hat Enterprise Linux 7	all versions
Red Hat	Red Hat Enterprise Linux 8	all versions
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	all versions
Red Hat	Red Hat Enterprise Linux 8.2 Telecommunications Update Service	all versions
Red Hat	Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions	all versions
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	all versions
Red Hat	Red Hat Enterprise Linux 8.4 Telecommunications Update Service	all versions
Red Hat	Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions	all versions
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support	all versions
Red Hat	Red Hat Enterprise Linux 8.8 Extended Update Support	all versions
Red Hat	Red Hat Enterprise Linux 9	all versions
Red Hat	Red Hat Enterprise Linux 9.0 Extended Update Support	all versions
Red Hat	Red Hat Enterprise Linux 9.2 Extended Update Support	all versions
rhel aus	8.2	—
rhel aus	8.4	—
rhel e4s	8.2	—
rhel e4s	8.4	—
rhel eus	8.6	—
rhel eus	8.8	—
rhel eus	9.0	—
rhel eus	9.2	—
rhel tus	8.2	—
rhel tus	8.4	—
tigervnc	tigervnc	—
x.org	x server	< 21.1.10
x.org	xwayland	< 23.2.3

References and patches

RHSA-2023:7886 vendor-advisoryVendor Advisory
RHSA-2024:0006 vendor-advisory
RHSA-2024:0009 vendor-advisory
RHSA-2024:0010 vendor-advisory
RHSA-2024:0014 vendor-advisory
RHSA-2024:0015 vendor-advisory
RHSA-2024:0016 vendor-advisory
RHSA-2024:0017 vendor-advisory
RHSA-2024:0018 vendor-advisory
RHSA-2024:0020 vendor-advisory
RHSA-2024:2169 vendor-advisory
RHSA-2024:2170 vendor-advisory
RHSA-2024:2995 vendor-advisory
RHSA-2024:2996 vendor-advisory
RHSA-2025:12751 vendor-advisory
https://access.redhat.com/security/cve/CVE-2023-6478 vdb-entryVendor Advisory
RHBZ#2253298 issue-trackingIssue Tracking
https://gitlab.freedesktop.org/xorg/xserver/-/commit/14f480010a93ff962fef66a16412fafff81ad632 Patch
https://lists.x.org/archives/xorg-announce/2023-December/003435.html Vendor Advisory
http://www.openwall.com/lists/oss-security/2023/12/13/1
https://lists.debian.org/debian-lts-announce/2023/12/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6R63Z6GIWM3YUN…
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7PP47YXKM5ETLC…
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFHV5KCQ2SVOD4…
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LJDFWDB7EQVZA4…
https://security.gentoo.org/glsa/202401-30
https://security.netapp.com/advisory/ntap-20240125-0003/
https://www.debian.org/security/2023/dsa-5576

CPE matches (NVD) (7)

cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* < 21.1.10
cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* < 23.2.3
cpe:2.3:o:redhat:enterprise_linux_eus:9.2:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
cpe:2.3:a:tigervnc:tigervnc:-:*:*:*:*:*:*:*

CVSS score

7.6High

Source: redhat · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: Low
Availability: Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

All scores (3)

cna	CVSS 3.1	7.6High
secalert@redhat.com	CVSS 3.1	7.6High
nvd	CVSS 3.1	7.5High

EPSS (chance of exploitation in 30 days)

1.62%

higher than 76% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: yes
Technical impact: partial

Timeline

ID reserved2023-12-04
Published2023-12-13 09:27
Reached IP-DB2026-10-24 23:52
Last updated2026-11-05 00:17

Assigned by (CNA): redhat
NVD status: Modified

View at source: CVE.org · NVD

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