VDB-95811 · CVE-2015-8855 · BID 86957

semver Package up to 4.3.1 on Node.js Regex resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in semver Package up to 4.3.1 on Node.js. Affected by this issue is some unknown functionality of the component Regex Handler. Performing a manipulation results in resource management. This vulnerability is identified as CVE-2015-8855. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in semver Package up to 4.3.1 on Node.js (JavaScript Library). It has been classified as problematic. This affects some unknown functionality of the component Regex Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

The semver package before 4.3.2 for Node.js allows attackers to cause a denial of service (CPU consumption) via a long version string, aka a "regular expression denial of service (ReDoS)."

The bug was discovered 04/04/2015. The weakness was released 01/23/2017 (Website). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2015-8855 since 04/20/2016. 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 was handled as a non-public zero-day exploit for at least 660 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.3.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 86957†). Entries connected to this vulnerability are available at VDB-95801, VDB-95802, VDB-95803 and VDB-95804. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: semver Package 4.3.2

Timelineinfo

04/04/2015 🔍
04/04/2016 +366 days 🔍
04/20/2016 +16 days 🔍
01/23/2017 +278 days 🔍
01/23/2017 +0 days 🔍
01/24/2017 +1 days 🔍
05/14/2026 +3397 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8855 (🔍)
GCVE (CVE): GCVE-0-2015-8855
GCVE (VulDB): GCVE-100-95811
SecurityFocus: 86957 - Semver CVE-2015-8855 Regular Expression Denial of Service Vulnerability
OSVDB: - CVE-2015-8855 - Node.js - Regular Expression Denial of Service Issue

See also: 🔍

Entryinfo

Created: 01/24/2017 08:29
Updated: 05/14/2026 11:53
Changes: 01/24/2017 08:29 (61), 07/30/2020 12:50 (6), 05/14/2026 11:53 (20)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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