yaml-cpp 0.5.3 YAML File HandleNode memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in yaml-cpp 0.5.3. Impacted is the function SingleDocParser::HandleNode of the component YAML File Handler. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2017-5950. The attack is restricted to local execution. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in yaml-cpp 0.5.3 and classified as problematic. Affected by this vulnerability is the function SingleDocParser::HandleNode of the component YAML File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. The summary by CVE is:

The SingleDocParser::HandleNode function in yaml-cpp (aka LibYaml-C++) 0.5.3 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.

The bug was discovered 01/17/2017. The weakness was disclosed 04/03/2017 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2017-5950 since 02/09/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 76 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 107214 (SUSE SLED12 Security Update : yaml-cpp (SUSE-SU-2018:0631-1)), 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 170910 (SUSE Enterprise Linux Security Update for yaml-cpp (SUSE-SU-2018:0631-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (107214) and SecurityFocus (BID 97307†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 107214
Nessus Name: SUSE SLED12 Security Update : yaml-cpp (SUSE-SU-2018:0631-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

01/17/2017 🔍
02/09/2017 +23 days 🔍
04/03/2017 +53 days 🔍
04/03/2017 +0 days 🔍
04/03/2017 +0 days 🔍
04/03/2017 +0 days 🔍
03/07/2018 +338 days 🔍
03/08/2018 +1 days 🔍
11/04/2025 +2797 days 🔍

Sourcesinfo

Advisory: 459⛔
Status: Confirmed

CVE: CVE-2017-5950 (🔍)
GCVE (CVE): GCVE-0-2017-5950
GCVE (VulDB): GCVE-100-99247
SecurityFocus: 97307 - yaml-cpp CVE-2017-5950 Stack Buffer Overflow Vulnerability
OSVDB: - CVE-2017-5950 - yaml-cpp - Denial of Service Issue

Entryinfo

Created: 04/03/2017 16:58
Updated: 11/04/2025 00:56
Changes: 04/03/2017 16:58 (72), 08/25/2020 12:31 (6), 11/24/2022 18:20 (4), 11/04/2025 00:56 (18)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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