FreeBSD 10.1 stdio _sflush memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in FreeBSD 10.1. This issue affects the function _sflush in the library stdio. This manipulation causes memory corruption. This vulnerability appears as CVE-2014-8611. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370192 (Apple Mac OS X v10.11 Not Installed (APPLE-SA-2015-09-30-3)).

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), Tenable (86270), SecurityFocus (BID 71621†), SecurityTracker (ID 1031343†) and Vulnerability Center (SBV-52778†). See VDB-9015, VDB-74127, VDB-77828 and VDB-77762 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CVSSv4info

VulDB Vector: 🔍
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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: 🔍

CVSSv2info

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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

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EPSS Percentile: 🔍

Price Prediction: 🔍
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Nessus ID: 86270
Nessus Name: Mac OS X < 10.11 Multiple Vulnerabilities (GHOST)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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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 🔍
11/21/2024 +3352 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 (🔍)
GCVE (CVE): GCVE-0-2014-8611
GCVE (VulDB): GCVE-100-68413
X-Force: 99592 - FreeBSD stdio buffer overflow, High Risk
SecurityFocus: 71621 - FreeBSD stdio CVE-2014-8611 Heap Buffer Overflow Vulnerability
SecurityTracker: 1031343
Vulnerability Center: 52778 - FreeBSD 10.1 Remote Code Execution due to Buffer Overflow, High

See also: 🔍

Entryinfo

Created: 12/11/2014 15:08
Updated: 11/21/2024 19:34
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), 11/21/2024 19:34 (16)
Complete: 🔍
Cache ID: 216:D6F:103

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