CVE-2023-6606

Kernel: out-of-bounds read vulnerability in smbcalcsize

State: Published
Severity: 7.1 High
Published: Dec 8, 2023
Updated: Oct 14, 2026
Reserved: Dec 8, 2023

Description

An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	redhat

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
Red Hat Enterprise Linux 8Red Hat	0:4.18.0-513.18.1.rt7.320.el8_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:4.18.0-513.18.1.el8_9 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat	0:4.18.0-372.95.1.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat	0:4.18.0-477.51.1.el8_8 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-362.24.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-362.24.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:5.14.0-284.52.1.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:5.14.0-284.52.1.rt14.337.el9_2 and laterNot affected
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Red Hat	0:4.18.0-372.95.1.el8_6 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-22 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-11 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v6.8.1-407 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-19 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v1.0.0-479 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-7 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.4.0-247 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-5 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v1.1.0-227 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.1-470 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v2.9.6-14 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-2 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-24 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-10 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.1.0-525 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.1.0-224 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.28.1-56 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 9Red Hat

References

RHSA-2024:0723vendor-advisory
RHSA-2024:0725vendor-advisory
RHSA-2024:0881vendor-advisory
RHSA-2024:0897vendor-advisory
RHSA-2024:1188vendor-advisory
RHSA-2024:1248vendor-advisory
RHSA-2024:1404vendor-advisory
RHSA-2024:2094vendor-advisory
https://access.redhat.com/security/cve/CVE-2023-6606vdb-entry
https://bugzilla.kernel.org/show_bug.cgi?id=218218
RHBZ#2253611issue-tracking
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://cert-portal.siemens.com/productcert/html/ssa-613116.html

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