CVE-2020-26241

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Source
https://cve.org/CVERecord?id=CVE-2020-26241
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26241.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-26241
Aliases
Downstream
Related
Published
2020-11-25T02:15:11.047Z
Modified
2026-04-12T00:37:30.502594Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
Summary
[none]
Details

Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. This is a Consensus vulnerability in Geth before version 1.9.17 which can be used to cause a chain-split where vulnerable nodes reject the canonical chain. Geth's pre-compiled dataCopy (at 0x00...04) contract did a shallow copy on invocation. An attacker could deploy a contract that writes X to an EVM memory region R, then calls 0x00..04 with R as an argument, then overwrites R to Y, and finally invokes the RETURNDATACOPY opcode. When this contract is invoked, a consensus-compliant node would push X on the EVM stack, whereas Geth would push Y. This is fixed in version 1.9.17.

References

Affected packages

Git / github.com/ethereum/go-ethereum

Affected ranges

Type
GIT
Repo
https://github.com/ethereum/go-ethereum
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
748f22c192d24082723f935afd0b0b63e7fd50f4
Database specific 
{
    "cpe": "cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*",
    "source": "CPE_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.9.17"
        }
    ]
}

Affected versions

0.*
0.2.2
0.3.0
0.3.1
0.5.13
0.5.14
0.5.15
0.5.16
0.5.17
0.5.18
0.5.19
0.9.16
0.9.23
Other
2
poc1
poc5-rc1
poc5-rc10
poc5-rc11
poc5-rc12
poc5-rc2
poc5-rc3
poc5-rc4
poc5-rc6
poc5-rc7
poc5-rc8
poc5-rc9
v0.*
v0.8.4
v0.9.17
v0.9.18
v0.9.20
v0.9.21
v0.9.22
v0.9.23
v0.9.24
v0.9.25
v0.9.26
v0.9.28
v0.9.30
v0.9.32
v0.9.34
v0.9.34-1
v0.9.36
v0.9.38
v1.*
v1.0.1
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.5.5
v1.5.6
v1.5.7
v1.5.8
v1.5.9
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.8.0
v1.8.1
v1.8.10
v1.8.11
v1.8.12
v1.8.13
v1.8.14
v1.8.15
v1.8.16
v1.8.17
v1.8.18
v1.8.19
v1.8.2
v1.8.20
v1.8.21
v1.8.3
v1.8.4
v1.8.5
v1.8.6
v1.8.7
v1.8.8
v1.8.9
v1.9.0
v1.9.1
v1.9.10
v1.9.11
v1.9.12
v1.9.13
v1.9.14
v1.9.15
v1.9.16
v1.9.2
v1.9.3
v1.9.4
v1.9.5
v1.9.6
v1.9.7
v1.9.8
v1.9.9

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26241.json"