PT-2012-3806 · Linux+2 · Linux Kernel+2

Eugene Teo + 1 · Published 2012-04-12 · Updated 2023-02-13 · CVE-2012-2100

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.2.2

Description The issue allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX BG group size (aka s log groups per flex value). This problem exists because of an incomplete fix for a previous issue.

Recommendations For Linux kernel versions prior to 3.2.2, update to version 3.2.2 or later to resolve the issue.

Fix

DoS

Weakness Enumeration

CWE-189

Related Identifiers

CESA-2012_1580

CVE-2012-2100

RHSA-2012:1445

RHSA-2012:1580

RHSA-2012_1445

RHSA-2012_1580

USN-1384-1

USN-1388-1

USN-1389-1

USN-1404-1

USN-1405-1

USN-1432-1

USN-1440-1

USN-1458-1

Affected Products

Centos

Linux Kernel

Red Hat

References · 22

• https://ubuntu.com/security/CVE-2012-2100 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1432-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1405-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2012-2048.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1404-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2012-1580.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1384-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2012-2100 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1389-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2012-2100 · Security Note
• http://rhn.redhat.com/errata/RHSA-2012-1445.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2012-2100 · Security Note
• https://ubuntu.com/security/notices/USN-1388-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1440-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1458-1 · Vendor Advisory