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Auto-Update: 2023-06-16T23:55:25.535300+00:00
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CVE-2023/CVE-2023-344xx/CVE-2023-34459.json
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CVE-2023/CVE-2023-344xx/CVE-2023-34459.json
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{
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"id": "CVE-2023-34459",
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"sourceIdentifier": "security-advisories@github.com",
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"published": "2023-06-16T23:15:08.817",
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"lastModified": "2023-06-16T23:15:08.817",
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"vulnStatus": "Received",
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"descriptions": [
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{
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"lang": "en",
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"value": "OpenZeppelin Contracts is a library for smart contract development. Starting in version 4.7.0 and prior to version 4.9.2, when the `verifyMultiProof`, `verifyMultiProofCalldata`, `procesprocessMultiProof`, or `processMultiProofCalldat` functions are in use, it is possible to construct merkle trees that allow forging a valid multiproof for an arbitrary set of leaves.\n\nA contract may be vulnerable if it uses multiproofs for verification and the merkle tree that is processed includes a node with value 0 at depth 1 (just under the root). This could happen inadvertedly for balanced trees with 3 leaves or less, if the leaves are not hashed. This could happen deliberately if a malicious tree builder includes such a node in the tree.\n\nA contract is not vulnerable if it uses single-leaf proving (`verify`, `verifyCalldata`, `processProof`, or `processProofCalldata`), or if it uses multiproofs with a known tree that has hashed leaves. Standard merkle trees produced or validated with the @openzeppelin/merkle-tree library are safe.\n\nThe problem has been patched in version 4.9.2.\n\nSome workarounds are available. For those using multiproofs: When constructing merkle trees hash the leaves and do not insert empty nodes in your trees. Using the @openzeppelin/merkle-tree package eliminates this issue. Do not accept user-provided merkle roots without reconstructing at least the first level of the tree. Verify the merkle tree structure by reconstructing it from the leaves."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "security-advisories@github.com",
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"type": "Secondary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"availabilityImpact": "NONE",
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"baseScore": 5.3,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 1.6,
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"impactScore": 3.6
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}
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]
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},
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"weaknesses": [
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{
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"source": "security-advisories@github.com",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-354"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/OpenZeppelin/openzeppelin-contracts/commit/4d2383e17186be3e8ccf5a442e9686ecc7de1c55",
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"source": "security-advisories@github.com"
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},
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{
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"url": "https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.9.2",
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"source": "security-advisories@github.com"
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},
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{
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"url": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-wprv-93r4-jj2p",
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"source": "security-advisories@github.com"
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}
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]
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}
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25
README.md
25
README.md
@ -9,13 +9,13 @@ Repository synchronizes with the NVD every 2 hours.
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### Last Repository Update
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```plain
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2023-06-16T22:00:27.376950+00:00
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2023-06-16T23:55:25.535300+00:00
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```
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### Most recent CVE Modification Timestamp synchronized with NVD
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```plain
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2023-06-16T21:15:09.420000+00:00
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2023-06-16T23:15:08.817000+00:00
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```
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### Last Data Feed Release
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@ -29,33 +29,20 @@ Download and Changelog: [Click](https://github.com/fkie-cad/nvd-json-data-feeds/
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### Total Number of included CVEs
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```plain
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217967
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217968
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```
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### CVEs added in the last Commit
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Recently added CVEs: `12`
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Recently added CVEs: `1`
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* [CVE-2023-25187](CVE-2023/CVE-2023-251xx/CVE-2023-25187.json) (`2023-06-16T20:15:09.297`)
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* [CVE-2023-34474](CVE-2023/CVE-2023-344xx/CVE-2023-34474.json) (`2023-06-16T20:15:09.370`)
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* [CVE-2023-34475](CVE-2023/CVE-2023-344xx/CVE-2023-34475.json) (`2023-06-16T20:15:09.433`)
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* [CVE-2023-35784](CVE-2023/CVE-2023-357xx/CVE-2023-35784.json) (`2023-06-16T20:15:09.493`)
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* [CVE-2023-3195](CVE-2023/CVE-2023-31xx/CVE-2023-3195.json) (`2023-06-16T20:15:09.547`)
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* [CVE-2023-30903](CVE-2023/CVE-2023-309xx/CVE-2023-30903.json) (`2023-06-16T21:15:09.107`)
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* [CVE-2023-30904](CVE-2023/CVE-2023-309xx/CVE-2023-30904.json) (`2023-06-16T21:15:09.157`)
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* [CVE-2023-30905](CVE-2023/CVE-2023-309xx/CVE-2023-30905.json) (`2023-06-16T21:15:09.200`)
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* [CVE-2023-33438](CVE-2023/CVE-2023-334xx/CVE-2023-33438.json) (`2023-06-16T21:15:09.247`)
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* [CVE-2023-35788](CVE-2023/CVE-2023-357xx/CVE-2023-35788.json) (`2023-06-16T21:15:09.340`)
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* [CVE-2023-35789](CVE-2023/CVE-2023-357xx/CVE-2023-35789.json) (`2023-06-16T21:15:09.383`)
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* [CVE-2023-35790](CVE-2023/CVE-2023-357xx/CVE-2023-35790.json) (`2023-06-16T21:15:09.420`)
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* [CVE-2023-34459](CVE-2023/CVE-2023-344xx/CVE-2023-34459.json) (`2023-06-16T23:15:08.817`)
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### CVEs modified in the last Commit
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Recently modified CVEs: `2`
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Recently modified CVEs: `0`
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* [CVE-2023-2820](CVE-2023/CVE-2023-28xx/CVE-2023-2820.json) (`2023-06-16T21:15:09.043`)
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* [CVE-2023-35708](CVE-2023/CVE-2023-357xx/CVE-2023-35708.json) (`2023-06-16T21:15:09.293`)
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## Download and Usage
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