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CVE-2022-4064

Dalli Meta Protocol request_formatter.rb self.meta_set injection

Medium6.3EPSS 1.4%
Published
Updated
Reserved
Assigned by
VulDB

Description

A vulnerability was found in Dalli up to 3.2.2. It has been classified as problematic. Affected is the function self.meta_set of the file lib/dalli/protocol/meta/request_formatter.rb of the component Meta Protocol Handler. The manipulation of the argument cas/ttl leads to injection. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.3 is able to address this issue. The patch is identified as 48d594dae55934476fec61789e7a7c3700e0f50d. It is recommended to upgrade the affected component.

Scores

CVSS scores of CVE-2022-4064, by who scored it
Scored byCVSSScoreVector
VulDBCNA (assigner)4.0Medium6.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
VulDBCNA (assigner)3.1Low3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
VulDBCNA (assigner)3.0Low3.7CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
VulDBCNA (assigner)2.0Low2.6AV:N/AC:H/Au:N/C:N/I:P/A:N
NVDNVD · Modified4.0Medium6.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (exploitation in 30 days)
1.4% · top 27% of all CVEs (5 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.3.

Weakness

Affected products

  • Dalli

    • affected 3.2.0
    • affected 3.2.1
    • affected 3.2.2

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References (7)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .