Current Description

Multiple buffer overflows in Exim before 4.43 may allow attackers to execute arbitrary code via (1) an IPv6 address with more than 8 components, as demonstrated using the -be command line option, which triggers an overflow in the host_aton function, or (2) the -bh command line option or dnsdb PTR lookup, which triggers an overflow in the dns_build_reverse function.

Basic Data

PublishedMay 02, 2005
Last ModifiedOctober 11, 2017
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeNVD-CWE-Other
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 2 - Access VectorLOCAL
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactCOMPLETE
CVSS 2 - Availability ImpactCOMPLETE
CVSS 2 - Base Score7.2
Exploitability Score3.9
Impact Score10.0
Obtain All Privilegetrue
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.


  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationUniversity Of CambridgeExim********4.40
    2.3ApplicationUniversity Of CambridgeExim4.41*******
    2.3ApplicationUniversity Of CambridgeExim4.42*******

Vulnerable Software List

University Of Cambridge Exim *, 4.41, 4.42


GLSA-200501-23 Advisory
DSA-635 Advisory
DSA-637 Advisory
[exim] 20050104 2 smallish security issues
20050107 Exim host_aton() Buffer Overflow Vulnerability Advisory
20050114 Exim dns_buld_reverse() Buffer Overflow Vulnerability Vendor Advisory
VU#132992 US Government Resource