GnuTLS up to 3.3.25/3.5.7 X.509 Proxy Certificate gnutls_x509_ext_import_proxy double free
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.4 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, has been found in GnuTLS up to 3.3.25/3.5.7 (Network Encryption Software). Affected by this issue is the function gnutls_x509_ext_import_proxy
of the component X.509 Proxy Certificate Handler. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability.
The bug was discovered 01/11/2017. The weakness was released 01/11/2017 as confirmed advisory (Website). The advisory is shared for download at gnutls.org. This vulnerability is handled as CVE-2017-5334 since 01/10/2017. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 96507 (Fedora 24 : gnutls (2017-e86817c42e)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276395 (Fedora Security Update for gnutls (FEDORA-2017-e86817c42e)).
Upgrading to version 3.3.26 or 3.5.8 eliminates this vulnerability. A possible mitigation has been published 3 days after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (96507). Entries connected to this vulnerability are available at 95277, 95278 and 95279.
Product
Type
Name
Version
- 3.3.0
- 3.3.1
- 3.3.2
- 3.3.3
- 3.3.4
- 3.3.5
- 3.3.6
- 3.3.7
- 3.3.8
- 3.3.9
- 3.3.10
- 3.3.11
- 3.3.12
- 3.3.13
- 3.3.14
- 3.3.15
- 3.3.16
- 3.3.17
- 3.3.18
- 3.3.19
- 3.3.20
- 3.3.21
- 3.3.22
- 3.3.23
- 3.3.24
- 3.3.25
- 3.5.0
- 3.5.1
- 3.5.2
- 3.5.3
- 3.5.4
- 3.5.5
- 3.5.6
- 3.5.7
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.4
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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: Double freeCWE: CWE-415 / CWE-119
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 |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 96507
Nessus Name: Fedora 24 : gnutls (2017-e86817c42e)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 867773
OpenVAS Name: Fedora Update for gnutls FEDORA-2017-e86817c42e
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: GnuTLS 3.3.26/3.5.8
Patch: gitlab.com
Timeline
01/10/2017 🔍01/10/2017 🔍
01/11/2017 🔍
01/11/2017 🔍
01/11/2017 🔍
01/13/2017 🔍
01/14/2017 🔍
01/16/2017 🔍
03/24/2017 🔍
10/28/2022 🔍
Sources
Advisory: RHSA-2017:2292Status: Confirmed
Confirmation: 🔍
CVE: CVE-2017-5334 (🔍)
SecurityTracker: 1037576
SecurityFocus: 95370 - GnuTLS CVE-2017-5334 Security Bypass Vulnerability
OSVDB: - CVE-2017-5334 - GnuTLS - Double Free Issue
See also: 🔍
Entry
Created: 01/13/2017 11:39Updated: 10/28/2022 14:24
Changes: 01/13/2017 11:39 (87), 10/28/2022 14:24 (5)
Complete: 🔍
Cache ID: 3:D84:103
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