CVE-2020-27793
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-27793
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27793.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-27793
- Downstream
- Published
- 2022-08-19T23:15:08Z
- Modified
- 2025-10-22T18:11:30.182138Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.
- References
Affected packages
Git / github.com/radare/radare2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/radare/radare2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
0.*
0.10.0
0.10.1
0.10.2
0.10.3
0.10.4
0.10.4-termux4
0.10.5
0.10.6
0.8.6
0.8.8
0.9
0.9.2
0.9.4
0.9.6
0.9.7
0.9.8
0.9.8-rc1
0.9.8-rc2
0.9.8-rc3
0.9.8-rc4
0.9.9
1.*
1.0
1.0.0
1.0.1
1.0.2
1.1.0
1.2.0
1.2.0-git
1.3.0
1.3.0-git
1.4.0
1.5.0
1.6.0
2.*
2.0.0
2.0.1
2.1.0
2.2.0
2.4.0
2.5.0
2.6.0
2.6.9
2.7.0
2.8.0
2.9.0
3.*
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
3.1.3
3.2.0
3.2.1
3.3.0
3.4.0
3.4.1
3.5.0
3.5.1
3.6.0
3.7.0
3.7.1
3.8.0
3.9.0
4.*
4.0.0
4.1.0
4.1.1
4.2.0
4.2.1
4.3.0
4.3.1
Other
Continuous-Windows
continuous
radare2-windows-nightly
termux
Database specific
vanir_signatures
[
{
"id": "CVE-2020-27793-231ef07b",
"deprecated": false,
"digest": {
"length": 19258.0,
"function_hash": "244292947791401580523619951343614918559"
},
"signature_version": "v1",
"target": {
"function": "fcn_recurse",
"file": "libr/anal/fcn.c"
},
"source": "https://github.com/radare/radare2/commit/9ea0b7ce566cfdcfb3513f407c4056915204294a",
"signature_type": "Function"
},
{
"id": "CVE-2020-27793-dd8f2939",
"deprecated": false,
"digest": {
"line_hashes": [
"274805908220688149522755239760777672229",
"119466392069489334944469399236725859120",
"33443597288417089084816862781691635747",
"274718893259183668102575589565194103045"
],
"threshold": 0.9
},
"signature_version": "v1",
"target": {
"file": "libr/anal/fcn.c"
},
"source": "https://github.com/radare/radare2/commit/9ea0b7ce566cfdcfb3513f407c4056915204294a",
"signature_type": "Line"
}
]
Git / github.com/radare/radare2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/radareorg/radare2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
0.*
0.10.0
0.10.1
0.10.2
0.10.3
0.10.4
0.10.4-termux4
0.10.5
0.10.6
0.8.6
0.8.8
0.9
0.9.2
0.9.4
0.9.6
0.9.7
0.9.8
0.9.8-rc1
0.9.8-rc2
0.9.8-rc3
0.9.8-rc4
0.9.9
1.*
1.0
1.0.0
1.0.1
1.0.2
1.1.0
1.2.0
1.2.0-git
1.3.0
1.3.0-git
1.4.0
1.5.0
1.6.0
2.*
2.0.0
2.0.1
2.1.0
2.2.0
2.4.0
2.5.0
2.6.0
2.6.9
2.7.0
2.8.0
2.9.0
3.*
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
3.1.3
3.2.0
3.2.1
3.3.0
3.4.0
3.4.1
3.5.0
3.5.1
3.6.0
3.7.0
3.7.1
3.8.0
3.9.0
4.*
4.0.0
4.1.0
4.1.1
4.2.0
4.2.1
4.3.0
4.3.1
Other
Continuous-Windows
continuous
radare2-windows-nightly
termux
Database specific
vanir_signatures
[
{
"id": "CVE-2020-27793-b92a97b1",
"deprecated": false,
"digest": {
"line_hashes": [
"220573137710199612712351242122012869989",
"267056293608470280450140324480739949539",
"24753110438177061253684813837281270178",
"182537489851628075162603501473392459654"
],
"threshold": 0.9
},
"signature_version": "v1",
"target": {
"file": "libr/core/p/core_java.c"
},
"source": "https://github.com/radareorg/radare2/commit/ced0223c7a1b3b5344af315715cd28fe7c0d9ebc",
"signature_type": "Line"
},
{
"id": "CVE-2020-27793-e05ad92b",
"deprecated": false,
"digest": {
"length": 767.0,
"function_hash": "281549250108404963213448806190067423306"
},
"signature_version": "v1",
"target": {
"function": "r_cmd_java_call",
"file": "libr/core/p/core_java.c"
},
"source": "https://github.com/radareorg/radare2/commit/ced0223c7a1b3b5344af315715cd28fe7c0d9ebc",
"signature_type": "Function"
}
]