GNU gcc up to 4.9.3 Blocking Source Read std::random_device information disclosure
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.4 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, was found in GNU gcc up to 4.9.3. Affected is the function std::random_device
of the component Blocking Source Read Handler. 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 std::random_device class in libstdc++ in the GNU Compiler Collection (aka GCC) before 4.9.4 does not properly handle short reads from blocking sources, which makes it easier for context-dependent attackers to predict the random values via unspecified vectors.
The weakness was published 11/17/2015 (Website). The advisory is available at gcc.gnu.org. This vulnerability is traded as CVE-2015-5276 since 07/01/2015. 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 86648 (SUSE SLED12 / SLES12 Security Update : gcc48 (SUSE-SU-2015:1833-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170264 (SUSE Enterprise Linux Security Update for MozillaFirefox, MozillaFirefox-branding-SLED, firefox-gcc5, mozilla-nss (SUSE-SU-2017:2235-1)).
Upgrading to version 4.9.4 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (86648).
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3
VulDB Meta Base Score: 5.6VulDB Meta Temp Score: 5.4
VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Information disclosureCWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 86648
Nessus Name: SUSE SLED12 / SLES12 Security Update : gcc48 (SUSE-SU-2015:1833-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 12024
OpenVAS Name: Mageia Linux Local Check: mgasa-2015-0449
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: gcc 4.9.4
Timeline
07/01/2015 🔍10/06/2015 🔍
10/29/2015 🔍
11/17/2015 🔍
11/17/2015 🔍
11/17/2015 🔍
11/18/2015 🔍
11/26/2015 🔍
06/27/2022 🔍
Sources
Vendor: gnu.orgAdvisory: gcc.gnu.org
Status: Not defined
Confirmation: 🔍
CVE: CVE-2015-5276 (🔍)
SecurityTracker: 1034375
Vulnerability Center: 54616 - Libstdc++ in the GNU Compiler Collection before 4.9.4 Information Disclosure via Unspecified Vectors, Medium
Entry
Created: 11/18/2015 10:15Updated: 06/27/2022 14:30
Changes: 11/18/2015 10:15 (58), 04/20/2018 09:25 (13), 06/27/2022 14:30 (3)
Complete: 🔍
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