FreeBSD 10.1 stdio _sflush memory corruption

EntryHistoryDiffjsonxmlCTI

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4.6	$0-$5k	0.00

A vulnerability has been found in FreeBSD 10.1 (Operating System) and classified as problematic. Affected by this vulnerability is the function _sflush in the library stdio. The manipulation 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 availability.

The weakness was presented 12/10/2014 by Adrian Chadd and Alfred Perlstein with Norse Corporation as FreeBSD-SA-14:27.stdio as confirmed advisory (Website). The advisory is shared at security.FreeBSD.org. This vulnerability is known as CVE-2014-8611 since 11/04/2014. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The advisory points out:

A programming error in the standard I/O library's __sflush() function could erroneously adjust the buffered stream's internal state even when no write actually occurred in the case when write(2) system call returns an error.

The vulnerability scanner Nessus provides a plugin with the ID 86270 (Mac OS X < 10.11 Multiple Vulnerabilities (GHOST)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (99592) and Tenable (86270). See 9015, 74127, 77828 and 77762 for similar entries.

Productinfo

Type

Operating System

Name

FreeBSD

Version

10.1

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 86270
Nessus Name: Mac OS X < 10.11 Multiple Vulnerabilities (GHOST)
Nessus File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Timelineinfo

11/04/2014 🔍
12/10/2014 +36 days 🔍
12/10/2014 +0 days 🔍
12/10/2014 +0 days 🔍
12/11/2014 +1 days 🔍
12/11/2014 +0 days 🔍
09/16/2015 +279 days 🔍
09/17/2015 +1 days 🔍
09/18/2015 +1 days 🔍
03/01/2022 +2356 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: FreeBSD-SA-14:27.stdio
Researcher: Adrian Chadd, Alfred Perlstein
Organization: Norse Corporation
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8611 (🔍)
X-Force: 99592 - FreeBSD stdio buffer overflow, High Risk
SecurityTracker: 1031343
Vulnerability Center: 52778 - FreeBSD 10.1 Remote Code Execution due to Buffer Overflow, High
SecurityFocus: 71621 - FreeBSD stdio CVE-2014-8611 Heap Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 12/11/2014 15:08
Updated: 03/01/2022 09:31
Changes: 12/11/2014 15:08 (64), 12/24/2017 09:51 (13), 03/01/2022 09:27 (3), 03/01/2022 09:31 (1)
Complete: 🔍