Unbound up to 1.9.4 dnscrypt/dnscrypt.c integer overflow ⚔ [Disputed]

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.
7.5$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Unbound up to 1.9.4. This vulnerability affects unknown code of the file dnscrypt/dnscrypt.c. The manipulation results in integer overflow. This vulnerability is cataloged as CVE-2019-25038. There is no exploit available. There is ongoing doubt regarding the real existence of this vulnerability. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Unbound up to 1.9.4. Affected is an unknown code block of the file dnscrypt/dnscrypt.c. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 04/27/2021. The advisory is shared for download at ostif.org. This vulnerability is traded as CVE-2019-25038. There are known technical details, but no exploit is available.

The real existence of this vulnerability is still doubted at the moment.

Upgrading to version 1.9.5 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Unbound 1.9.5

Timelineinfo

04/27/2021 🔍
04/27/2021 +0 days 🔍
04/27/2021 +0 days 🔍
08/05/2024 +1196 days 🔍

Sourcesinfo

Advisory: ostif.org
Status: Confirmed
Disputed: 🔍

CVE: CVE-2019-25038 (🔍)
GCVE (CVE): GCVE-0-2019-25038
GCVE (VulDB): GCVE-100-174144

Entryinfo

Created: 04/27/2021 16:35
Updated: 08/05/2024 10:05
Changes: 04/27/2021 16:35 (37), 05/02/2021 08:49 (5), 05/02/2021 08:53 (18), 06/12/2024 04:10 (17), 08/05/2024 10:05 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!