Dalli Meta Protocol request_formatter.rb self.meta_set injection
Published Nov 19, 2022
6.3
MEDIUMCVSS 4.0
EPSS 1.37%
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.
Affected products
- Vendor n/a Product Dalli Defaultn/a
- Version 3.2.0StatusaffectedConstraints-
- Version 3.2.1StatusaffectedConstraints-
- Version 3.2.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n/a | Dalli | n/a |
|
- ≥ - · < 3.2.3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS: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
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
AV:N/AC:H/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Apr 14, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.37% (0.01370) | 70.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.28% (0.01284) | 66.23th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.15% (0.00152) | 33.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00090) | 40.27th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.09% (0.00090) | 38.67th | v3 (v2023.03.01) |
| May 1, 2024 | 0.08% (0.00080) | 33.51th | v3 (v2023.03.01) |
| Dec 22, 2023 | 0.07% (0.00072) | 30.03th | v3 (v2023.03.01) |
| Nov 26, 2023 | 0.06% (0.00064) | 26.72th | v3 (v2023.03.01) |
| Oct 20, 2023 | 0.06% (0.00058) | 23.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00051) | 17.78th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Nov 20, 2022 | 1.02% (0.01018) | 39.45th | v2 (v2022.01.01) |
References (9)
- https://github.com/advisories/GHSA-3xg8-cc8f-9wv2 Advisoryissue-tracking
- https://github.com/petergoldstein/dalli/commit/48d594dae55934476fec61789e7a7c3700e0f50d patchThird Party Advisory
- https://github.com/petergoldstein/dalli/issues/932 exploitissue-trackingIssue TrackingThird Party Advisory
- https://github.com/petergoldstein/dalli/pull/933 issue-trackingPatchThird Party Advisory
- https://github.com/petergoldstein/dalli/releases/tag/v3.2.3 patch
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/dalli/CVE-2022-4064.yml
- https://nvd.nist.gov/vuln/detail/CVE-2022-4064
- https://vuldb.com/?ctiid.214026 signaturepermissions-required
- https://vuldb.com/?id.214026 vdb-entrytechnical-descriptionThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-3xg8-cc8f-9wv2 | Advisoryissue-tracking | |
| https://github.com/petergoldstein/dalli/commit/48d594dae55934476fec61789e7a7c3700e0f50d | patchThird Party Advisory | |
| https://github.com/petergoldstein/dalli/issues/932 | exploitissue-trackingIssue TrackingThird Party Advisory | |
| https://github.com/petergoldstein/dalli/pull/933 | issue-trackingPatchThird Party Advisory | |
| https://github.com/petergoldstein/dalli/releases/tag/v3.2.3 | patch | |
| https://github.com/rubysec/ruby-advisory-db/blob/master/gems/dalli/CVE-2022-4064.yml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2022-4064 | ||
| https://vuldb.com/?ctiid.214026 | signaturepermissions-required | |
| https://vuldb.com/?id.214026 | vdb-entrytechnical-descriptionThird Party Advisory |
Change history (0)
No recorded changes yet.