CVE-2022-37452

Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set.

CVSS v3.0 9.8 CRITICAL

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.exim.org/static/doc/security/	Vendor Advisory
https://github.com/ivd38/exim_overflow	Exploit Patch Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/08/06/8	Mailing List Third Party Advisory
https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743	Patch Third Party Advisory
https://github.com/Exim/exim/wiki/EximSecurity	Release Notes Third Party Advisory
https://github.com/Exim/exim/compare/exim-4.94...exim-4.95	Patch Release Notes Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00014.html	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Information

Published : 2022-08-07 11:15

Updated : 2022-10-28 05:52

NVD link : CVE-2022-37452

Mitre link : CVE-2022-37452

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Products Affected

debian

debian_linux

exim

exim

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.exim.org/static/doc/security/", "name": "https://www.exim.org/static/doc/security/", "tags": ["Vendor Advisory"], "refsource": "MISC"}, {"url": "https://github.com/ivd38/exim_overflow", "name": "https://github.com/ivd38/exim_overflow", "tags": ["Exploit", "Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.openwall.com/lists/oss-security/2022/08/06/8", "name": "https://www.openwall.com/lists/oss-security/2022/08/06/8", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743", "name": "https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/Exim/exim/wiki/EximSecurity", "name": "https://github.com/Exim/exim/wiki/EximSecurity", "tags": ["Release Notes", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/Exim/exim/compare/exim-4.94...exim-4.95", "name": "https://github.com/Exim/exim/compare/exim-4.94...exim-4.95", "tags": ["Patch", "Release Notes", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/08/msg00014.html", "name": "[debian-lts-announce] 20220827 [SECURITY] [DLA 3082-1] exim4 security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-787"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-37452", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2022-08-07T18:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.95"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-10-28T12:52Z"}

9.8 /10