CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.1 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, was found in FreeBSD 9.3/10.1 (Operating System). This affects an unknown functionality of the component TCP Connection Handler. The manipulation with an unknown input leads to a data processing vulnerability. CWE is classifying the issue as CWE-19. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
FreeBSD 9.3 before p33, 10.1 before p26, and 10.2 before p9 allow remote attackers to cause a denial of service (kernel crash) via vectors related to creating a TCP connection with the TCP_MD5SIG and TCP_NOOPT socket options.
The weakness was shared 01/14/2016 by Jonathan T. Looney (ryan) as FreeBSD-SA-16:05.tcp as confirmed advisory (Website). It is possible to read the advisory at security.freebsd.org. This vulnerability is uniquely identified as CVE-2016-1882 since 01/13/2016. 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 106499 (pfSense < 2.3 Multiple Vulnerabilities (SA-16_01 - SA-16_02)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Firewalls and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124628 (FreeBSD Multiple Security Vulnerabilities).
Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (109644) and Tenable (106499). The entries 80316, 80317, 80318 and 81379 are related to this item.
Product
Type
Name
Version
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: 8.8VulDB Meta Temp Score: 8.1
VulDB Base Score: 10.0
VulDB Temp Score: 8.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: Data processingCWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Proof-of-Concept
Download: 🔍
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: 106499
Nessus Name: pfSense < 2.3 Multiple Vulnerabilities (SA-16_01 - SA-16_02)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
01/13/2016 🔍01/14/2016 🔍
01/14/2016 🔍
01/14/2016 🔍
01/16/2016 🔍
01/17/2016 🔍
01/19/2016 🔍
01/29/2016 🔍
01/31/2018 🔍
07/03/2022 🔍
Sources
Product: freebsd.orgAdvisory: FreeBSD-SA-16:05.tcp
Researcher: Jonathan T. Looney (ryan)
Status: Confirmed
CVE: CVE-2016-1882 (🔍)
X-Force: 109644 - FreeBSD TCP connections denial of service
SecurityTracker: 1034677
Vulnerability Center: 55719 - FreeBSD Remote DoS due to a Flaw in TCP Connection Handling, Medium
SecurityFocus: 80754 - FreeBSD TCP MD5 signature CVE-2016-1882 Denial of Service Vulnerability
See also: 🔍
Entry
Created: 01/19/2016 10:34Updated: 07/03/2022 15:11
Changes: 01/19/2016 10:34 (62), 07/05/2018 08:54 (22), 07/03/2022 15:06 (3), 07/03/2022 15:11 (1)
Complete: 🔍
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