Socat up to 1.7.2/2.0.0-b7 Signal input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Socat up to 1.7.2/2.0.0-b7. It has been classified as problematic. This affects an unknown function of the component Signal Handler. This manipulation causes input validation. This vulnerability is handled as CVE-2015-1379. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Socat up to 1.7.2/2.0.0-b7. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Signal Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

The signal handler implementations in socat before 1.7.3.0 and 2.0.0-b8 allow remote attackers to cause a denial of service (process freeze or crash).

The bug was discovered 04/06/2015. The weakness was released 06/08/2017 by Peter Lobsinger (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2015-1379 since 01/27/2015. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 794 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 216897 (SUSE SLES12 Security Update : socat (SUSE-SU-2025:0726-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.7.3.0 or 2.0.0-b8 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (216897) and SecurityFocus (BID 72321†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 216897
Nessus Name: SUSE SLES12 Security Update : socat (SUSE-SU-2025:0726-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Socat 1.7.3.0/2.0.0-b8

Timelineinfo

01/27/2015 🔍
01/27/2015 +0 days 🔍
04/06/2015 +69 days 🔍
06/08/2017 +794 days 🔍
06/08/2017 +0 days 🔍
06/09/2017 +1 days 🔍
02/27/2025 +2820 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Peter Lobsinger
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-1379 (🔍)
GCVE (CVE): GCVE-0-2015-1379
GCVE (VulDB): GCVE-100-102121
SecurityFocus: 72321 - socat Remote Denial of Service Vulnerability

Entryinfo

Created: 06/09/2017 07:54
Updated: 02/27/2025 12:16
Changes: 06/09/2017 07:54 (63), 10/15/2019 11:04 (1), 02/27/2025 12:16 (21)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!