Dnsmasq 2.86 fuzz_rfc1035.c resize_packet heap-based overflow ⚔ [Disputed]

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Dnsmasq 2.86. The affected element is the function resize_packet of the file fuzz_rfc1035.c. Executing a manipulation can lead to heap-based overflow. The identification of this vulnerability is CVE-2021-45955. There is no exploit available. The presence of this vulnerability remains uncertain at this time.

Detailsinfo

A vulnerability classified as critical was found in Dnsmasq 2.86 (Domain Name Software). This vulnerability affects the function resize_packet of the file fuzz_rfc1035.c. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 01/01/2022. The advisory is available at bugs.chromium.org. This vulnerability was named CVE-2021-45955 since 12/31/2021. Technical details are known, but there is no available exploit.

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

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

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: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/31/2021 🔍
01/01/2022 +1 days 🔍
01/01/2022 +0 days 🔍
08/04/2024 +946 days 🔍

Sourcesinfo

Advisory: bugs.chromium.org
Status: Confirmed
Confirmation: 🔍
Disputed: 🔍

CVE: CVE-2021-45955 (🔍)
GCVE (CVE): GCVE-0-2021-45955
GCVE (VulDB): GCVE-100-189514

Entryinfo

Created: 01/01/2022 10:16
Updated: 08/04/2024 07:34
Changes: 01/01/2022 10:16 (39), 01/05/2022 11:59 (1), 06/12/2024 04:30 (34), 08/04/2024 07:34 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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