CVE-2017-16944

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Summary

CVECVE-2017-16944
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-11-25 17:29:00 UTC
Updated2021-05-04 18:15:00 UTC
DescriptionThe receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.

Risk And Classification

Problem Types: CWE-835

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Exim Exim 4.88 All All All
Application Exim Exim 4.89 All All All
Application Exim Exim 4.88 All All All
Application Exim Exim 4.89 All All All

References

ReferenceSourceLinkTags
oss-security - 21Nails: Multiple vulnerabilities in Exim MLIST www.openwall.com
Debian -- Security Information -- DSA-4053-1 exim4 DEBIAN www.debian.org Third Party Advisory
Exim Infinite Loop in bdat_getc() Lets Remote Users Consume Excessive Memory Resources - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
Bug 2201 – Exim handles BDAT data incorrectly and leads to crash MISC bugs.exim.org Exploit, Issue Tracking
oss-security - Re: RCE in Exim reported MISC openwall.com Mailing List
Exim 4.89 - 'BDAT' Denial of Service - Multiple dos Exploit EXPLOIT-DB www.exploit-db.com Third Party Advisory, VDB Entry
oss-security - RCE in Exim reported MISC openwall.com Mailing List
oss-security - Re: RCE in Exim reported MISC openwall.com Mailing List
[exim-announce] Critical Exim Security Vulnerability: disable chunking MISC lists.exim.org Mailing List
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500886 Alpine Linux Security Update for exim
  • 504719 Alpine Linux Security Update for exim
  • 710286 Gentoo Linux Exim Multiple Vulnerabilities (GLSA 201803-01)
  • 750227 OpenSUSE Security Update for exim (openSUSE-SU-2021:0677-1)
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