VDB-9913 · CVE-2013-4220 · SA54187

Linux Kernel up to 3.9.4 el0_sync_compat entry.S denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel 3.9.0/3.9.1/3.9.2/3.9.3/3.9.4. This affects an unknown part of the file arch/arm64/kernel/entry.S of the component el0_sync_compat Handler. This manipulation causes denial of service. This vulnerability appears as CVE-2013-4220. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability has been found in Linux Kernel 3.9.0/3.9.1/3.9.2/3.9.3/3.9.4 (Operating System) and classified as problematic. Affected by this vulnerability is an unknown functionality of the file arch/arm64/kernel/entry.S of the component el0_sync_compat Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

The bad_mode function in arch/arm64/kernel/traps.c in the Linux kernel before 3.9.5 on the ARM64 platform allows local users to cause a denial of service (system crash) via vectors involving an attempted register access that triggers an unexpected value in the Exception Syndrome Register (ESR).

The weakness was presented 05/31/2013 as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. The public release was coordinated in cooperation with Linux. This vulnerability is known as CVE-2013-4220 since 06/12/2013. An attack has to be approached locally. The successful exploitation needs a single authentication. Technical details are known, but no exploit is available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at OSVDB (96130†) and Secunia (SA54187†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

05/31/2013 🔍
05/31/2013 +0 days 🔍
06/12/2013 +12 days 🔍
08/09/2013 +58 days 🔍
08/12/2013 +3 days 🔍
08/24/2013 +12 days 🔍
05/08/2018 +1718 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: seclists.org
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-4220 (🔍)
GCVE (CVE): GCVE-0-2013-4220
GCVE (VulDB): GCVE-100-9913
Secunia: 54187 - Linux Kernel ARM64 "el0_sync_compat" Handler Denial of Service Vulnerability, Not Critical
OSVDB: 96130

Entryinfo

Created: 08/12/2013 15:58
Updated: 05/08/2018 09:01
Changes: 08/12/2013 15:58 (54), 05/08/2018 09:01 (7)
Complete: 🔍
Committer:
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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