CVE-2005-0021
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 2.62% probability · 85th percentile
- CISA KEV
- Not listed
- Affected
- university of cambridge/exim
- Source
- cve@mitre.org
References
- http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44
- http://security.gentoo.org/glsa/glsa-200501-23.xmlVendor Advisory
- http://www.debian.org/security/2005/dsa-635Vendor Advisory
- http://www.debian.org/security/2005/dsa-637Vendor Advisory
- http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html
- http://www.idefense.com/application/poi/display?id=179&type=vulnerabilitiesVendor Advisory
- http://www.idefense.com/application/poi/display?id=183&type=vulnerabilitiesExploit, Vendor Advisory
- http://www.kb.cert.org/vuls/id/132992Patch, US Government Resource
- http://www.redhat.com/support/errata/RHSA-2005-025.htmlPatch
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10347
- http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44
- http://security.gentoo.org/glsa/glsa-200501-23.xmlVendor Advisory
- http://www.debian.org/security/2005/dsa-635Vendor Advisory
- http://www.debian.org/security/2005/dsa-637Vendor Advisory
- http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html
- http://www.idefense.com/application/poi/display?id=179&type=vulnerabilitiesVendor Advisory
- http://www.idefense.com/application/poi/display?id=183&type=vulnerabilitiesExploit, Vendor Advisory
- http://www.kb.cert.org/vuls/id/132992Patch, US Government Resource
- http://www.redhat.com/support/errata/RHSA-2005-025.htmlPatch
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10347
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.