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| Rule General Information |
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| Release Date: | 2019-07-04 | |
| Rule Name: | Exim BDAT Command Denial Of Service Vulnerability (CVE-2017-16944) | |
| Severity: | ||
| CVE ID: | ||
| Rule Protection Details |
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| 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. | |
| Impact: | An attacker can launch a denial of service attack by exploiting the vulnerability successfully. | |
| Affected OS: | Windows, Linux, FreeBSD, Solaris, Other Unix, Network Device, Mac OS, iOS, Android, Others | |
| Reference: | SecurityTrackerID:1039873 ExploitDB:43184 http://openwall.com/lists/oss-security/2017/11/25/1 http://openwall.com/lists/oss-security/2017/11/25/2 |
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| Solutions |
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| The vendors have released upgrade patches to fix vulnerabilities, please visit: https://bugs.exim.org/show_bug.cgi?id=2201 |