Veracode Vulnerability DatabaseVERACODE:36922Heap-based Buffer Overflow
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
44.0%
exim4 is vulnerable to heap-based buffer overflow. The vulnerability exists in the alias list in host_name_lookup in host.c. When the sender_host_name is set an attacker is able to cause buffer overflows.
References
github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743
github.com/Exim/exim/compare/exim-4.94...exim-4.95
github.com/Exim/exim/wiki/EximSecurity
github.com/ivd38/exim_overflow
lists.debian.org/debian-lts-announce/2022/08/msg00014.html
security-tracker.debian.org/tracker/CVE-2022-37452
www.exim.org/static/doc/security/
www.openwall.com/lists/oss-security/2022/08/06/8
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
44.0%