High
Security advisory
An issue was discovered in Pure-FTPd 1.0.49. An uninitialized pointer vulnerability has been detected in the diraliases linked list. When the *lookup_alias(const char alias) or print_aliases(void) function is called, they fail to correctly detect the end of the linked list and try to access a non-existent list member. This is related to init_aliases in diraliases.c.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-9274
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:34 UTC · Revision 1
Source evidence
An issue was discovered in Pure-FTPd 1.0.49. An uninitialized pointer vulnerability has been detected in the diraliases linked list. When the *lookup_alias(const char alias) or print_aliases(void) function is called, they fail to correctly detect the end of the linked list and try to access a non-existent list member. This is related to init_aliases in diraliases.c.
osv:CVE-2020-9274
Complete source record
{
"id": "1c89f92b18f554046bf337ffe8eeef97d08e1a5a47a86a68e2eee02fa6599db9",
"url": "https://osv.dev/vulnerability/CVE-2020-9274",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-9274",
"summary": "An issue was discovered in Pure-FTPd 1.0.49. An uninitialized pointer vulnerability has been detected in the diraliases linked list. When the *lookup_alias(const char alias) or print_aliases(void) function is called, they fail to correctly detect the end of the linked list and try to access a non-existent list member. This is related to init_aliases in diraliases.c.",
"evidence": "osv:CVE-2020-9274",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-9274",
"aliases": [
"CVE-2020-9274"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/jedisct1/pure-ftpd",
"type": "GIT",
"events": [
{
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},
{
"fixed": "868f0e2277e3f5890ca08c84d41de8065a7d8bc3"
},
{
"fixed": "8d0d42542e2cb7a56d645fbe4d0ef436e38bcefa"
}
],
"database_specific": {
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{
"cpe": "cpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.0.50"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
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}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"1.0.48",
"1.0.45",
"1.0.44",
"1.0.43",
"1.0.41",
"1.0.40",
"1.0.39",
"1.0.38",
"1.0.37",
"1.0.36",
"1.0.35",
"1.0.34",
"1.0.33"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-9274.json",
"vanir_signatures": [
{
"id": "CVE-2020-9274-00e4d04c",
"digest": {
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},
"source": "https://github.com/jedisct1/pure-ftpd/commit/868f0e2277e3f5890ca08c84d41de8065a7d8bc3",
"target": {
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},
"deprecated": false,
"signature_type": "Line",
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{
"id": "CVE-2020-9274-4817218f",
"digest": {
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},
"source": "https://github.com/jedisct1/pure-ftpd/commit/8d0d42542e2cb7a56d645fbe4d0ef436e38bcefa",
"target": {
"file": "src/diraliases.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2020-9274-4d96a6cc",
"digest": {
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"line_hashes": [
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},
"source": "https://github.com/jedisct1/pure-ftpd/commit/868f0e2277e3f5890ca08c84d41de8065a7d8bc3",
"target": {
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"deprecated": false,
"signature_type": "Line",
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},
{
"id": "CVE-2020-9274-5a2a20bb",
"digest": {
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"function_hash": "118518986303841811066015673851572743280"
},
"source": "https://github.com/jedisct1/pure-ftpd/commit/8d0d42542e2cb7a56d645fbe4d0ef436e38bcefa",
"target": {
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"function": "init_aliases"
},
"deprecated": false,
"signature_type": "Function",
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},
{
"id": "CVE-2020-9274-bdd51916",
"digest": {
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"function_hash": "37089621735897002683250435944003137392"
},
"source": "https://github.com/jedisct1/pure-ftpd/commit/868f0e2277e3f5890ca08c84d41de8065a7d8bc3",
"target": {
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"function": "pureftpd_start"
},
"deprecated": false,
"signature_type": "Function",
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}
],
"vanir_signatures_modified": "2026-10-20T13:54:07Z"
}
}
],
"modified": "2026-10-20T13:54:07.857726477Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22P44PECZWNDP7CMBL7NRBMNFS73C5Z2/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5NSUDWXZVWUCL6R2PTX3KBB42Z62CA5/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5DBVHJCXWRSJPNJQCJQCKZF6ZDPZCKA/",
"https://lists.debian.org/debian-lts-announce/2020/02/msg00029.html",
"https://security.gentoo.org/glsa/202003-54",
"https://usn.ubuntu.com/4515-1/",
"https://www.pureftpd.org/project/pure-ftpd/news/",
"https://github.com/jedisct1/pure-ftpd/commit/8d0d42542e2cb7a56d645fbe4d0ef436e38bcefa"
],
"provider_metadata": {
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],
"vendor_product": "canonical:ubuntu_linux",
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{
"range": [
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},
{
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],
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}
]
},
{
"cpes": [
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],
"vendor_product": "debian:debian_linux",
"extracted_events": [
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"range": [
{
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{
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{
"introduced": "8.0"
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{
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],
"source": "CPE_STRING"
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]
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{
"cpes": [
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"cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:extra_packages_for_enterprise_linux",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
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{
"last_affected": "7.0"
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{
"introduced": "8.0"
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{
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}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "30"
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{
"last_affected": "30"
},
{
"introduced": "31"
},
{
"last_affected": "31"
},
{
"introduced": "32"
},
{
"last_affected": "32"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-9274",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388363,
"published_at": "2020-02-26T16:15:19.847+00:00"
}