dnsmasq Packet use after free

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

A vulnerability was found in dnsmasq (Domain Name Software) (version now known). It has been rated as problematic. This issue affects some unknown processing of the component Packet Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is availability. The summary by CVE is:

A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.

The weakness was released 08/29/2022. The advisory is shared at access.redhat.com. The identification of this vulnerability is CVE-2022-0934 since 03/11/2022. Neither technical details nor an exploit are publicly available.

Applying the patch 03345ecefeb0d82e3c3a4c28f27c3554f0611b39 is able to eliminate this problem. The bugfix is ready for download at thekelleys.org.uk.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 03345ecefeb0d82e3c3a4c28f27c3554f0611b39

Timelineinfo

03/11/2022 🔍
08/29/2022 +170 days 🔍
08/29/2022 +0 days 🔍
10/09/2022 +41 days 🔍

Sourcesinfo

Advisory: access.redhat.com
Status: Confirmed

CVE: CVE-2022-0934 (🔍)

Entryinfo

Created: 08/29/2022 21:24
Updated: 10/09/2022 13:59
Changes: 08/29/2022 21:24 (40), 10/09/2022 13:59 (11)
Complete: 🔍

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