Linux Kernel 3.9.4 AF_KEY key_notify_sa_flush/key_notify_policy_flush sadb_msg_reserved memory corruption

CVSS Meta Temp Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel 3.9.4. This impacts the function key_notify_sa_flush/key_notify_policy_flush of the component AF_KEY. Executing a manipulation of the argument sadb_msg_reserved can lead to memory corruption. The identification of this vulnerability is CVE-2013-2234. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 3.9.4 (Operating System). It has been declared as problematic. This vulnerability affects the function key_notify_sa_flush/key_notify_policy_flush of the component AF_KEY. The manipulation of the argument sadb_msg_reserved with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality. CVE summarizes:

The (1) key_notify_sa_flush and (2) key_notify_policy_flush functions in net/key/af_key.c in the Linux kernel before 3.10 do not initialize certain structure members, which allows local users to obtain sensitive information from kernel heap memory by reading a broadcast message from the notify interface of an IPSec key_socket.

The weakness was shared 06/26/2013 by Marcus Meissner with SuSE as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability was named CVE-2013-2234 since 02/19/2013. The attack needs to be approached locally. The successful exploitation needs a single authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 70222 (Amazon Linux AMI : kernel (ALAS-2013-218)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350526 (Amazon Linux Security Advisory for kernel: ALAS-2013-218).

Upgrading to version 3.10 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (85559), Tenable (70222), OSVDB (94698†), Secunia (SA54311†) and Vulnerability Center (SBV-40701†). The entries VDB-7997, VDB-8073, VDB-8484 and VDB-8499 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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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Nessus ID: 70222
Nessus Name: Amazon Linux AMI : kernel (ALAS-2013-218)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892745
OpenVAS Name: Debian Security Advisory DSA 2745-1 (linux - privilege escalation/denial of service/information leak
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Upgrade: Kernel 3.10
Patch: git.kernel.org

Timelineinfo

02/19/2013 🔍
06/26/2013 +127 days 🔍
06/26/2013 +0 days 🔍
07/02/2013 +6 days 🔍
07/04/2013 +2 days 🔍
07/05/2013 +1 days 🔍
07/25/2013 +20 days 🔍
09/04/2013 +41 days 🔍
05/17/2021 +2812 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: seclists.org
Researcher: Marcus Meissner
Organization: SuSE
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-2234 (🔍)
GCVE (CVE): GCVE-0-2013-2234
GCVE (VulDB): GCVE-100-9304

OVAL: 🔍

X-Force: 85559
Secunia: 54311 - OpenVZ update for kernel, Less Critical
OSVDB: 94698
Vulnerability Center: 40701 - Linux Kernel before 3.10 Local Kernel Heap Memory Information Disclosure via IPSec key_socket, Low

See also: 🔍

Entryinfo

Created: 07/02/2013 12:15
Updated: 05/17/2021 14:25
Changes: 07/02/2013 12:15 (82), 05/06/2017 19:39 (2), 05/17/2021 14:25 (3)
Complete: 🔍
Committer:
Cache ID: 216::103

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