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CVE-2017-16944

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.

Risk Information

Base Score
7.5
MODERATE
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
76.366

Associated Vulnerability

VulnerabilityOS Platform
Exim4 4.88-5ubuntu1 for Ubuntu 17.04 (x64) exim4_4.88-5ubuntu1.3_all.debLinux
Linux kernel (LSN-0032-2) exim4-daemon-heavy_4.88-5ubuntu1.3_i386.debLinux
Linux kernel (LSN-0032-2) exim4-daemon-heavy_4.88-5ubuntu1.3_amd64.debLinux
Linux kernel (LSN-0032-2) exim4-daemon-heavy_4.89-5ubuntu1.2_i386.debLinux
Linux kernel (LSN-0032-2) exim4-daemon-heavy_4.89-5ubuntu1.2_amd64.debLinux
Linux kernel (LSN-0032-2) exim4-daemon-light_4.88-5ubuntu1.3_i386.debLinux
Linux kernel (LSN-0032-2) exim4-daemon-light_4.88-5ubuntu1.3_amd64.debLinux
Linux kernel (LSN-0032-2) exim4-daemon-light_4.89-5ubuntu1.2_i386.debLinux
Linux kernel (LSN-0032-2) exim4-daemon-light_4.89-5ubuntu1.2_amd64.debLinux
Exim is a mail transport agent (USN-3499-1) exim4-daemon-heavy_4.88-5ubuntu1.3_amd64.debLinux
Exim is a mail transport agent (USN-3499-1) exim4-daemon-heavy_4.88-5ubuntu1.3_i386.debLinux
Exim is a mail transport agent (USN-3499-1) exim4-daemon-heavy_4.89-5ubuntu1.2_amd64.debLinux
Exim is a mail transport agent (USN-3499-1) exim4-daemon-heavy_4.89-5ubuntu1.2_i386.debLinux
Exim is a mail transport agent (USN-3499-1) exim4-daemon-light_4.88-5ubuntu1.3_amd64.debLinux
Exim is a mail transport agent (USN-3499-1) exim4-daemon-light_4.88-5ubuntu1.3_i386.debLinux
Exim is a mail transport agent (USN-3499-1) exim4-daemon-light_4.89-5ubuntu1.2_amd64.debLinux
Exim is a mail transport agent (USN-3499-1) exim4-daemon-light_4.89-5ubuntu1.2_i386.debLinux
exim4 security update(DSA-4053-1) exim4_4.89-2+deb9u2_all.debLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234