CVE-2020-27787

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-27787
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-27787.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-27787
Downstream
Published
2022-08-18T19:15:14.210Z
Modified
2025-11-14T11:02:44.663104Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A Segmentaation fault was found in UPX in invertptdynamic() function in plxelf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.

References

Affected packages

Git / github.com/upx/upx

Affected ranges

Type
GIT
Repo
https://github.com/upx/upx
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e2f60adc95334f47e286838dac33160819c5d74d

Affected versions

v1.*

v1.10
v1.11
v1.90
v1.91
v1.92
v1.93
v1.94
v1.95
v1.96

v2.*

v2.00
v2.01
v2.90
v2.91
v2.92
v2.93

v3.*

v3.00
v3.01
v3.02
v3.03
v3.04
v3.05
v3.06
v3.07
v3.08
v3.09
v3.91
v3.92
v3.93
v3.94
v3.95

Database specific

vanir_signatures

[
    {
        "digest": {
            "length": 4697.0,
            "function_hash": "144188400907574595322118236151414717433"
        },
        "id": "CVE-2020-27787-4f82974f",
        "signature_type": "Function",
        "source": "https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d",
        "target": {
            "function": "PackLinuxElf32::invert_pt_dynamic",
            "file": "src/p_lx_elf.cpp"
        },
        "signature_version": "v1",
        "deprecated": false
    },
    {
        "digest": {
            "length": 4912.0,
            "function_hash": "340111673276646739986786030959432866294"
        },
        "id": "CVE-2020-27787-af096cd6",
        "signature_type": "Function",
        "source": "https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d",
        "target": {
            "function": "PackLinuxElf64::invert_pt_dynamic",
            "file": "src/p_lx_elf.cpp"
        },
        "signature_version": "v1",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "257870881940862614609256973709132984056",
                "272158922209213423681413894420799670836",
                "176268528693580875637945846304155638766",
                "4221361576905600357362673166681574292",
                "154229085320354130783943885107519624097",
                "11798162522091701296182368638276175336",
                "282848170757409618206783482560684873570",
                "31926769796970019876012897729278008859",
                "244734299183139268848497553753801842845",
                "258066308543225000455264772561468355391",
                "257870881940862614609256973709132984056",
                "272158922209213423681413894420799670836",
                "176268528693580875637945846304155638766",
                "4221361576905600357362673166681574292",
                "154229085320354130783943885107519624097",
                "266942197280038991510482381445817127018",
                "207549958718149381218130491740951084509",
                "95523670887827168245398882281645789644",
                "85300983397851604295314245906508970075",
                "299798673324378474265789794499724747146"
            ]
        },
        "id": "CVE-2020-27787-bedbb14e",
        "signature_type": "Line",
        "source": "https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d",
        "target": {
            "file": "src/p_lx_elf.cpp"
        },
        "signature_version": "v1",
        "deprecated": false
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-27787.json"