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kernel: call_console_drivers() function log prefix stripping DoS

Published Feb 28, 2013

Description

The log_prefix function in kernel/printk.c in the Linux kernel 3.x before 3.4.33 does not properly remove a prefix string from a syslog header, which allows local users to cause a denial of service (buffer overflow and system crash) by leveraging /dev/kmsg write access and triggering a call_console_drivers function call.

Affected products

Remediation

Red Hat statement

This issue did not affect the versions of kernel package as shipped with Red Hat Enterprise Linux 5 and 6. Future kernel updates for Red Hat Enterprise MRG 2 may address this flaw.

Metrics

References (8)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Feb 28, 2013
Updated Aug 6, 2024
Reserved Feb 19, 2013
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity Low
Public date Feb 22, 2013