OpenSSL 1.0.2 ClientHello Handshake null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in OpenSSL 1.0.2. This affects an unknown part of the component ClientHello Handshake. Performing a manipulation results in null pointer dereference. This vulnerability was named CVE-2015-0291. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in OpenSSL 1.0.2 (Network Encryption Software). This affects an unknown code of the component ClientHello Handshake. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The issue has been introduced in 03/19/2015. The weakness was presented 03/19/2015 as secadv_20150319.txt as confirmed advisory (Website). It is possible to read the advisory at openssl.org. This vulnerability is uniquely identified as CVE-2015-0291 since 11/18/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 82010 (GLSA-201503-11 : OpenSSL: Multiple vulnerabilities (FREAK)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11761 (Splunk Enterprise OpenSSL Multiple Vulnerabilities (SP-CAAAN4P)).

Upgrading to version 1.0.2a eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 19782.

The vulnerability is also documented in the databases at X-Force (101663), Tenable (82010), SecurityFocus (BID 73196†), SecurityTracker (ID 1031929†) and Vulnerability Center (SBV-56903†). Further details are available at grahamcluley.com. See VDB-74044, VDB-74045, VDB-74046 and VDB-74047 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 82010
Nessus Name: GLSA-201503-11 : OpenSSL: Multiple vulnerabilities (FREAK)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902837
OpenVAS Name: OpenSSL Multiple Vulnerabilities -01 Nov15 (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: OpenSSL 1.0.2a
Patch: 76343947ada960b6269090638f5391068daee88d
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

11/18/2014 🔍
03/16/2015 +118 days 🔍
03/19/2015 +3 days 🔍
03/19/2015 +0 days 🔍
03/19/2015 +0 days 🔍
03/19/2015 +0 days 🔍
03/20/2015 +1 days 🔍
03/23/2015 +3 days 🔍
07/20/2015 +118 days 🔍
03/01/2016 +226 days 🔍
04/15/2022 +2235 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: secadv_20150319.txt
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-0291 (🔍)
GCVE (CVE): GCVE-0-2015-0291
GCVE (VulDB): GCVE-100-74043
X-Force: 101663 - OpenSSL ClientHello denial of service
SecurityFocus: 73196
SecurityTracker: 1031929
Vulnerability Center: 56903 - OpenSSL 1.0.2 Remote DoS via Invalid \x27signature_algorithms\x27 Extension - CVE-2015-0291, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 03/20/2015 09:49
Updated: 04/15/2022 20:22
Changes: 03/20/2015 09:49 (73), 08/25/2018 09:20 (13), 04/15/2022 20:22 (5)
Complete: 🔍
Cache ID: 216:7B1:103

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