Google Go 1.5.0/1.5.1/1.5.2 math/big Library Int.Exp Montgomery information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Google Go 1.5.0/1.5.1/1.5.2. Affected is the function Int.Exp Montgomery of the component math/big Library. The manipulation results in information disclosure. This vulnerability is identified as CVE-2015-8618. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Go 1.5.0/1.5.1/1.5.2 (Programming Language Software). Affected is the function Int.Exp Montgomery of the component math/big Library. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The Int.Exp Montgomery code in the math/big library in Go 1.5.x before 1.5.3 mishandles carry propagation and produces incorrect output, which makes it easier for attackers to obtain private RSA keys via unspecified vectors.

The weakness was released 01/27/2016 (Website). The advisory is available at groups.google.com. This vulnerability is traded as CVE-2015-8618 since 12/21/2015. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 87983 (FreeBSD : go -- information disclosure vulnerability (6809c6db-bdeb-11e5-b5fe-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168860 (OpenSuSE Security Update for go (openSUSE-SU-2016:1331-1)).

Upgrading to version 1.5.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87983) and Vulnerability Center (SBV-56331†). Entry connected to this vulnerability is available at VDB-87599. 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: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87983
Nessus Name: FreeBSD : go -- information disclosure vulnerability (6809c6db-bdeb-11e5-b5fe-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for golang FEDORA-2016-5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Go 1.5.3

Timelineinfo

12/21/2015 🔍
01/17/2016 +27 days 🔍
01/18/2016 +1 days 🔍
01/18/2016 +0 days 🔍
01/27/2016 +8 days 🔍
01/27/2016 +0 days 🔍
01/28/2016 +1 days 🔍
02/01/2016 +4 days 🔍
07/06/2022 +2346 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: 13515
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8618 (🔍)
GCVE (CVE): GCVE-0-2015-8618
GCVE (VulDB): GCVE-100-80706
Vulnerability Center: 56331 - Go 1.5 before 1.5.3 Remote Disclosure of Private RSA Keys due to Incorrect Computations, Medium

See also: 🔍

Entryinfo

Created: 01/28/2016 10:19
Updated: 07/06/2022 14:01
Changes: 01/28/2016 10:19 (61), 10/01/2018 14:39 (21), 07/06/2022 13:55 (4), 07/06/2022 14:01 (1)
Complete: 🔍
Cache ID: 216:FD9:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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