GnuPG up to 1.7.2 Random Number Generator information disclosure
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.2 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, was found in GnuPG up to 1.7.2. This affects some unknown processing of the component Random Number Generator. 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.
The weakness was released 08/17/2016 by Felix Dörre and Vladimir Klebanov as Security fixes for Libgcrypt and GnuPG 1.4 (Mailing List). It is possible to read the advisory at lists.gnupg.org. The public release was coordinated with the project team. This vulnerability is uniquely identified as CVE-2016-6313. The exploitability is told to be easy. Attacking locally is a requirement. Required for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.
The vulnerability scanner Nessus provides a plugin with the ID 93018 (Debian DSA-3649-1 : gnupg - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351328 (Amazon Linux Security Advisory for gnupg: AL2012-2018-252).
Upgrading to version 1.4.21 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (93018). Further details are available at youtube.com.
Product
Name
Version
License
CPE 2.3
CPE 2.2
Video
Youtube: Not available anymoreCVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.2
VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Information disclosureCWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 93018
Nessus Name: Debian DSA-3649-1 : gnupg - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
OpenVAS ID: 880021
OpenVAS Name: Fedora Update for gnupg FEDORA-2016-9864953aa3
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: GnuPG 1.4.21
Timeline
07/26/2016 🔍08/17/2016 🔍
08/17/2016 🔍
08/17/2016 🔍
08/17/2016 🔍
08/18/2016 🔍
12/13/2016 🔍
09/14/2022 🔍
Sources
Advisory: Security fixes for Libgcrypt and GnuPG 1.4Researcher: Felix Dörre, Vladimir Klebanov
Status: Confirmed
Coordinated: 🔍
CVE: CVE-2016-6313 (🔍)
OVAL: 🔍
SecurityTracker: 1036635 - GnuPG Flaw in Random Number Generator Mixing Functions Lets Users Predict Some Output
SecurityFocus: 92527 - GnuPG and Libgcrypt CVE-2016-6313 Local Predictable Random Number Generator Weakness
Misc.: 🔍
Entry
Created: 08/18/2016 10:19Updated: 09/14/2022 07:21
Changes: 08/18/2016 10:19 (47), 08/09/2019 15:37 (25), 09/14/2022 07:09 (3), 09/14/2022 07:15 (11), 09/14/2022 07:21 (1)
Complete: 🔍
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