LibreSSL 2.0.0/2.3.0 OBJ_obj2txt memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

A vulnerability was found in LibreSSL 2.0.0/2.3.0. It has been rated as critical. This issue affects the function OBJ_obj2txt. 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.

The weakness was released 10/15/2015 as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2015-5334 since 07/01/2015. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 87321 (Mac OS X Multiple Vulnerabilities (Security Updates 2015-005 / 2015-008)), 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 371218 (Apple macOS Mojave 10.14 Not Installed (APPLE-SA-2018-9-24-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (107238) and Tenable (87321). Entries connected to this vulnerability are available at 78550, 79411, 79545 and 79547.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.7
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NVD Base Score: 9.8
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CVSSv2info

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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 87321
Nessus Name: Mac OS X Multiple Vulnerabilities (Security Updates 2015-005 / 2015-008)
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OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-02 March-2016
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: no mitigation known
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0-Day Time: 🔍

Timelineinfo

07/01/2015 🔍
10/15/2015 +106 days 🔍
10/15/2015 +0 days 🔍
10/19/2015 +4 days 🔍
10/21/2015 +2 days 🔍
06/22/2022 +2436 days 🔍

Sourcesinfo

Advisory: 133998
Status: Confirmed

CVE: CVE-2015-5334 (🔍)
X-Force: 107238 - LibreSSL OBJ_obj2txt() buffer overflow
Vulnerability Center: 53541 - LibreSSL 2.3.0 and Earlier Remote DoS or Code Execution due to a Buffer Overflow, High
SecurityFocus: 104879

See also: 🔍

Entryinfo

Created: 10/21/2015 10:24
Updated: 06/22/2022 11:14
Changes: 10/21/2015 10:24 (51), 02/13/2018 07:50 (8), 06/22/2022 11:01 (3), 06/22/2022 11:07 (18), 06/22/2022 11:14 (2)
Complete: 🔍

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