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CVE-2017-16944

UNKNOWN
Published 2017-11-25T17:00:00
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No CVSS data available

Description

The 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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-vpr2-5gxq-hjc6

Advisory Details

The 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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2017-16944
WEB https://bugs.exim.org/show_bug.cgi?id=2201
WEB https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html
WEB https://www.debian.org/security/2017/dsa-4053
WEB https://www.exploit-db.com/exploits/43184
WEB http://openwall.com/lists/oss-security/2017/11/25/1
WEB http://openwall.com/lists/oss-security/2017/11/25/2
WEB http://openwall.com/lists/oss-security/2017/11/25/3
WEB http://www.openwall.com/lists/oss-security/2021/05/04/7
WEB http://www.securitytracker.com/id/1039873

Advisory provided by GitHub Security Advisory Database. Published: May 13, 2022, Modified: April 20, 2025

References

https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html
http://openwall.com/lists/oss-security/2017/11/25/3
https://bugs.exim.org/show_bug.cgi?id=2201
http://openwall.com/lists/oss-security/2017/11/25/1
http://www.securitytracker.com/id/1039873
http://openwall.com/lists/oss-security/2017/11/25/2
https://www.debian.org/security/2017/dsa-4053
https://www.exploit-db.com/exploits/43184/
http://www.openwall.com/lists/oss-security/2021/05/04/7

HackerOne Reports

Exim handles BDAT data incorrectly and leads to crash/hang High
mehqq
Internet Bug Bounty
Uncontrolled Resource Consumption
View Report
Published: 2017-11-25T17:00:00
Last Modified: 2024-08-05T20:43:57.859Z
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