Linux Kernel 3.12 Write Syscall exitcode.c memory corruption

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8.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel 3.12. This affects an unknown part of the file exitcode.c of the component Write Syscall Handler. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2013-4512. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel 3.12 (Operating System). Affected by this issue is some unknown functionality of the file exitcode.c of the component Write Syscall Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in the exitcode_proc_write function in arch/um/kernel/exitcode.c in the Linux kernel before 3.12 allows local users to cause a denial of service or possibly have unspecified other impact by leveraging root privileges for a write operation.

The weakness was published 10/30/2013 by Fabian Yamaguchi and Nico Golde as some unstracked linux kernel security fixes as confirmed mailinglist post (oss-sec). The advisory is available at seclists.org. The public release has been coordinated with the vendor. This vulnerability is handled as CVE-2013-4512 since 06/12/2013. The exploitation is known to be difficult. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 71511 (Mandriva Linux Security Advisory : kernel (MDVSA-2013:291)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks.

Applying the patch uml: check length in exitcode_proc_write() 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 Tenable (71511), SecurityFocus (BID 63510†), OSVDB (99323†) and Vulnerability Center (SBV-42190†). git.kernel.org is providing further details. Similar entries are available at VDB-11089, VDB-11092, VDB-11093 and VDB-11094. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.3
VulDB Temp Score: 8.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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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: 71511
Nessus Name: Mandriva Linux Security Advisory : kernel (MDVSA-2013:291)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 702906
OpenVAS Name: Debian Security Advisory DSA 2906-1 (linux-2.6 - privilege escalation/denial of service/information leak)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: uml: check length in exitcode_proc_write()

Timelineinfo

06/12/2013 🔍
10/30/2013 +140 days 🔍
10/30/2013 +0 days 🔍
11/04/2013 +5 days 🔍
11/06/2013 +2 days 🔍
11/06/2013 +0 days 🔍
11/12/2013 +6 days 🔍
06/01/2021 +2758 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: some unstracked linux kernel security fixes
Researcher: Fabian Yamaguchi, Nico Golde
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-4512 (🔍)
GCVE (CVE): GCVE-0-2013-4512
GCVE (VulDB): GCVE-100-11090

OVAL: 🔍

SecurityFocus: 63510
OSVDB: 99323
Vulnerability Center: 42190 - Linux Kernel 3.3.5 and Prior Local Code Execution Vulnerability due to Buffer Overflow in \x27exitcode_proc_write()\x27, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 11/06/2013 15:16
Updated: 06/01/2021 19:12
Changes: 11/06/2013 15:16 (72), 05/15/2017 07:59 (6), 06/01/2021 19:12 (3)
Complete: 🔍
Committer:
Cache ID: 216::103

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