OESA-2024-1927 (CVE-2022-3559)
Vulnerability from osv_openeuler – Published: 2024-08-02 11:07 – Updated: 2026-08-06 11:07 – Source websiteExim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet. It is freely available under the terms of the GNU General Public Licence. In style it is similar to Smail 3, but its facilities are more general. There is a great deal of flexibility in the way mail can be routed, and there are extensive facilities for checking incoming mail. Exim can be installed in place of sendmail, although the configuration of exim is quite different to that of sendmail.
Security Fix(es):
A vulnerability was found in Exim and classified as problematic. This issue affects some unknown processing of the component Regex Handler. The manipulation leads to use after free. The name of the patch is 4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2. It is recommended to apply a patch to fix this issue. The identifier VDB-211073 was assigned to this vulnerability.(CVE-2022-3559)
Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not.(CVE-2023-51766)
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"exim-debugsource-4.96-3.oe2203sp4.aarch64.rpm",
"exim-4.96-3.oe2203sp4.aarch64.rpm",
"exim-clamav-4.96-3.oe2203sp4.aarch64.rpm",
"exim-pgsql-4.96-3.oe2203sp4.aarch64.rpm",
"exim-mon-4.96-3.oe2203sp4.aarch64.rpm",
"exim-debuginfo-4.96-3.oe2203sp4.aarch64.rpm",
"exim-mysql-4.96-3.oe2203sp4.aarch64.rpm",
"exim-greylist-4.96-3.oe2203sp4.aarch64.rpm"
],
"src": [
"exim-4.96-3.oe2203sp4.src.rpm"
],
"x86_64": [
"exim-debugsource-4.96-3.oe2203sp4.x86_64.rpm",
"exim-mysql-4.96-3.oe2203sp4.x86_64.rpm",
"exim-clamav-4.96-3.oe2203sp4.x86_64.rpm",
"exim-4.96-3.oe2203sp4.x86_64.rpm",
"exim-pgsql-4.96-3.oe2203sp4.x86_64.rpm",
"exim-debuginfo-4.96-3.oe2203sp4.x86_64.rpm",
"exim-mon-4.96-3.oe2203sp4.x86_64.rpm",
"exim-greylist-4.96-3.oe2203sp4.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:22.03-LTS-SP4",
"name": "exim",
"purl": "pkg:rpm/openEuler/exim\u0026distro=openEuler-22.03-LTS-SP4"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.96-3.oe2203sp4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "High"
},
"details": "Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet. It is freely available under the terms of the GNU General Public Licence. In style it is similar to Smail 3, but its facilities are more general. There is a great deal of flexibility in the way mail can be routed, and there are extensive facilities for checking incoming mail. Exim can be installed in place of sendmail, although the configuration of exim is quite different to that of sendmail.\r\n\r\nSecurity Fix(es):\r\n\r\nA vulnerability was found in Exim and classified as problematic. This issue affects some unknown processing of the component Regex Handler. The manipulation leads to use after free. The name of the patch is 4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2. It is recommended to apply a patch to fix this issue. The identifier VDB-211073 was assigned to this vulnerability.(CVE-2022-3559)\r\n\r\nExim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports \u0026lt;LF\u0026gt;.\u0026lt;CR\u0026gt;\u0026lt;LF\u0026gt; but some other popular e-mail servers do not.(CVE-2023-51766)",
"id": "OESA-2024-1927",
"modified": "2026-08-06T11:07:23Z",
"published": "2024-08-02T11:07:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/en/security/security-bulletins/detail?id=openEuler-SA-2024-1927"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3559"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51766"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "exim security update",
"upstream": [
"CVE-2022-3559",
"CVE-2023-51766"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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