High
Security advisory
An integer overflow in the getnum function in lua_struct.c in Redis before 6.0.3 allows context-dependent attackers with permission to run Lua code in a Redis session to cause a denial of service (memory corruption and application crash) or possibly bypass intended sandbox restrictions via a large number, which triggers a stack-based buffer overflow. NOTE: this issue exists because of a CVE-2015-8080 regression.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-14147
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:26 UTC · Revision 1
Source evidence
An integer overflow in the getnum function in lua_struct.c in Redis before 6.0.3 allows context-dependent attackers with permission to run Lua code in a Redis session to cause a denial of service (memory corruption and application crash) or possibly bypass intended sandbox restrictions via a large number, which triggers a stack-based buffer overflow. NOTE: this issue exists because of a CVE-2015-8080 regression.
osv:CVE-2020-14147
Complete source record
{
"id": "3b8897c5ad0c1d641758068916007e58f9e7f142925df4cca473f427b5c776e0",
"url": "https://osv.dev/vulnerability/CVE-2020-14147",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-14147",
"summary": "An integer overflow in the getnum function in lua_struct.c in Redis before 6.0.3 allows context-dependent attackers with permission to run Lua code in a Redis session to cause a denial of service (memory corruption and application crash) or possibly bypass intended sandbox restrictions via a large number, which triggers a stack-based buffer overflow. NOTE: this issue exists because of a CVE-2015-8080 regression.",
"evidence": "osv:CVE-2020-14147",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-14147",
"aliases": [
"CVE-2020-14147"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/antirez/redis",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "ef764dde1cca2f25d00686673d1bc89448819571"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"fixed": "ef764dde1cca2f25d00686673d1bc89448819571"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14147.json",
"vanir_signatures": [
{
"id": "CVE-2020-14147-1c9f15ff",
"digest": {
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"function_hash": "285556551804856358181809971858790846830"
},
"source": "https://github.com/antirez/redis/commit/ef764dde1cca2f25d00686673d1bc89448819571",
"target": {
"file": "deps/lua/src/lua_struct.c",
"function": "controloptions"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2020-14147-8ad6483a",
"digest": {
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},
"source": "https://github.com/antirez/redis/commit/ef764dde1cca2f25d00686673d1bc89448819571",
"target": {
"file": "deps/lua/src/lua_struct.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
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{
"id": "CVE-2020-14147-a8de9166",
"digest": {
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"function_hash": "4084196643356696974733906552222450367"
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"source": "https://github.com/antirez/redis/commit/ef764dde1cca2f25d00686673d1bc89448819571",
"target": {
"file": "deps/lua/src/lua_struct.c",
"function": "optsize"
},
"deprecated": false,
"signature_type": "Function",
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},
{
"id": "CVE-2020-14147-c76f01ae",
"digest": {
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"function_hash": "135527645391249101043499856436152069482"
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"source": "https://github.com/antirez/redis/commit/ef764dde1cca2f25d00686673d1bc89448819571",
"target": {
"file": "deps/lua/src/lua_struct.c",
"function": "getnum"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-24T14:22:38Z"
}
},
{
"ranges": [
{
"repo": "https://github.com/redis/redis",
"type": "GIT",
"events": [
{
"introduced": "0"
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{
"fixed": "ce878b6ed5df1a7b3e87a8af2d1262de4c5bb828"
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{
"introduced": "17dfd7cabbf7954f92b7a1243d4bb27fee5d4500"
},
{
"fixed": "7803b1148dafe65e2c7927eac7ce9e9ef729efc1"
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],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:redislabs:redis:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "5.0.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:redislabs:redis:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.0.3"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
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"6.0.1",
"6.0.0",
"5.0.8",
"5.0.7",
"5.0.6",
"5.0.5",
"5.0.4",
"5.0.3",
"5.0.2",
"5.0.1",
"5.0.0",
"5.0-rc6",
"5.0-rc5",
"5.0-rc4",
"5.0-rc3",
"5.0-rc2",
"5.0-rc1",
"2.3-alpha0",
"2.2.0-rc1",
"2.2-alpha6",
"2.2-alpha5",
"2.2-alpha4",
"2.2-alpha3",
"2.2-alpha2",
"2.2-alpha1",
"2.2-alpha0",
"v2.0.0-rc1",
"v2.1.1-watch",
"v1.3.11",
"v1.3.10",
"v1.3.9",
"v1.3.8",
"v1.3.7",
"1.3.6",
"vm-playpen"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14147.json"
}
}
],
"modified": "2026-10-24T14:22:38.237698781Z",
"provider": "osv",
"references": [
"https://security.gentoo.org/glsa/202008-17",
"https://www.debian.org/security/2020/dsa-4731",
"https://www.oracle.com/security-alerts/cpujan2021.html",
"https://github.com/antirez/redis/commit/ef764dde1cca2f25d00686673d1bc89448819571",
"https://github.com/antirez/redis/pull/6875"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_operations_monitor:4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_operations_monitor:4.2:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_operations_monitor",
"extracted_events": [
{
"range": [
{
"introduced": "3.4"
},
{
"last_affected": "3.4"
},
{
"introduced": "4.1"
},
{
"last_affected": "4.1"
},
{
"introduced": "4.2"
},
{
"last_affected": "4.2"
},
{
"introduced": "4.3"
},
{
"last_affected": "4.3"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:suse:linux_enterprise:12.0:*:*:*:*:*:*:*"
],
"vendor_product": "suse:linux_enterprise",
"extracted_events": [
{
"range": [
{
"introduced": "12.0"
},
{
"last_affected": "12.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-14147",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 443674,
"published_at": "2020-06-15T18:15:14.99+00:00"
}