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CVE-2013-1772

Date: February 28, 2013

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.

Language: C

Severity Score

Related Resources (8)

https://github.com/torvalds/linux/commit/ce0030c00f95cf9110d9cdcd41e901e1fb814417
https://bugzilla.redhat.com/show_bug.cgi?id=916075
http://www.openwall.com/lists/oss-security/2013/02/26/9
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.33
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
https://nvd.nist.gov/vuln/detail/CVE-2013-1772
https://people.canonical.com/~ubuntu-security/cve/CVE-2013-1772
https://www.mend.io/vulnerability-database/CVE-2013-1772

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): HIGH
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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