Medium
Security advisory
Cyrus IMAP before 3.8.3 and 3.10.x before 3.10.0-rc1 allows authenticated attackers to cause unbounded memory allocation by sending many LITERALs in a single command.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2024-34055
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 20:13 UTC · Revision 1
Source evidence
Cyrus IMAP before 3.8.3 and 3.10.x before 3.10.0-rc1 allows authenticated attackers to cause unbounded memory allocation by sending many LITERALs in a single command.
osv:CVE-2024-34055
Complete source record
{
"id": "8590d72730221dc2ae7799052799def233dea4e721c42576baf043bb013e6ced",
"url": "https://osv.dev/vulnerability/CVE-2024-34055",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2024-34055",
"summary": "Cyrus IMAP before 3.8.3 and 3.10.x before 3.10.0-rc1 allows authenticated attackers to cause unbounded memory allocation by sending many LITERALs in a single command.",
"evidence": "osv:CVE-2024-34055",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2024-34055",
"aliases": [
"CVE-2024-34055"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/cyrusimap/cyrus-imapd",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "7b1a4ed258e0d6955b16540eb6e9540803d034be"
},
{
"introduced": "2a43510e2929d96590ed04906092d76759a31a92"
},
{
"fixed": "ef9e4e8314d6a06f2269af0ccf606894cc3fe489"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:cyrusimap:cyrus_imap:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.8.3"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:cyrusimap:cyrus_imap:3.10.0:alpha0:*:*:*:*:*:*",
"range": [
{
"introduced": "3.10.0-alpha0"
},
{
"last_affected": "3.10.0-alpha0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:cyrusimap:cyrus_imap:3.10.0:beta1:*:*:*:*:*:*",
"range": [
{
"introduced": "3.10.0-beta1"
},
{
"last_affected": "3.10.0-beta1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:cyrusimap:cyrus_imap:3.10.0:beta2:*:*:*:*:*:*",
"range": [
{
"introduced": "3.10.0-beta2"
},
{
"last_affected": "3.10.0-beta2"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "ef9e4e8314d6a06f2269af0ccf606894cc3fe489"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"3.10.0-alpha0",
"3.10.0-beta1",
"3.10.0-beta2",
"cyrus-imapd-3.8.2",
"cyrus-imapd-3.11.0-alpha0",
"cyrus-imapd-3.8.1",
"cyrus-imapd-3.8.0",
"cyrus-imapd-3.8.0-rc1",
"cyrus-imapd-3.8.0-beta2",
"cyrus-imapd-3.8.0-beta1",
"cyrus-imapd-3.9.0-alpha0",
"cyrus-imapd-3.8.0-alpha0",
"cyrus-imapd-3.7.0-alpha0",
"cyrus-imapd-3.5.0-alpha0",
"cyrus-imapd-3.3.1",
"cyrus-imapd-3.3.0",
"cyrus-imapd-3.3.0-dev0",
"cyrus-imapd-3.1.9",
"cyrus-imapd-3.1.8",
"cyrus-imapd-3.1.7",
"cyrus-imapd-3.1.6",
"cyrus-imapd-3.1.5",
"cyrus-imapd-3.1.4",
"cyrus-imapd-3.1.3",
"cyrus-imapd-3.1.2",
"cyrus-imapd-3.1.1",
"cyrus-imapd-3.0.0-rc4",
"cyrus-imapd-3.1.0-dev",
"cyrus-imapd-3.0.0-rc3",
"cyrus-imapd-3.0.0-rc2",
"cyrus-imapd-3.0.0-rc1",
"cyrus-imapd-3.0.0-beta6",
"cyrus-imapd-3.0.0-beta5",
"cyrus-imapd-3.0.0-beta4",
"cyrus-imapd-3.0.0-beta3",
"cyrus-imapd-3.0.0-beta2",
"cyrus-imapd-3.0.0-beta1",
"posttab",
"pretab",
"cyrus-imapd-2.5-snapshot-autoconf-and-automake",
"cyrus-imapd-2.4.2",
"cyrus-imapd-2.4.1",
"cyrus-imapd-2.4.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-34055.json"
}
}
],
"modified": "2026-10-28T02:30:31.976740687Z",
"provider": "osv",
"references": [
"https://www.cyrusimap.org/dev/imap/download/release-notes/3.10/x/3.10.0-rc1.html",
"https://www.cyrusimap.org/imap/download/release-notes/3.8/x/3.8.3.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/34xxx/CVE-2024-34055.json",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJZQAE3XC2GBCE5KSTWJ5A6QYANFWGFB/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WVZHUZDU4MGTTZJRNACTMSKXLNMMRLJ6/",
"https://nvd.nist.gov/vuln/detail/CVE-2024-34055",
"https://github.com/cyrusimap/cyrus-imapd/commit/ef9e4e8314d6a06f2269af0ccf606894cc3fe489"
],
"provider_metadata": {
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/34xxx/CVE-2024-34055.json"
}
},
"related_cves": [
{
"value": "CVE-2024-34055",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 498916,
"published_at": "2024-06-05T00:00:00+00:00"
}