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Search Parameters:
  • CPE Product Version: cpe:/a:sendmail:sendmail:2.6
There are 17 matching records.
Displaying matches 1 through 17.
Vuln ID Summary CVSS Severity
CVE-2023-51765

sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports <LF>.<CR><LF> but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with 'o' in srv_features.

Published: December 24, 2023; 1:15:07 AM -0500
V3.1: 5.3 MEDIUM
V2.0:(not available)
CVE-2021-3618

ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer.

Published: March 23, 2022; 4:15:09 PM -0400
V3.1: 7.4 HIGH
V2.0: 5.8 MEDIUM
CVE-2014-3956

The sm_close_on_exec function in conf.c in sendmail before 8.14.9 has arguments in the wrong order, and consequently skips setting expected FD_CLOEXEC flags, which allows local users to access unintended high-numbered file descriptors via a custom mail-delivery program.

Published: June 04, 2014; 7:19:13 AM -0400
V3.x:(not available)
V2.0: 1.9 LOW
CVE-2009-4565

sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Published: January 04, 2010; 4:30:00 PM -0500
V3.x:(not available)
V2.0: 7.5 HIGH
CVE-2009-1490

Heap-based buffer overflow in Sendmail before 8.13.2 allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via a long X- header, as demonstrated by an X-Testing header.

Published: May 05, 2009; 3:30:00 PM -0400
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2006-4434

Use-after-free vulnerability in Sendmail before 8.13.8 allows remote attackers to cause a denial of service (crash) via a long "header line", which causes a previously freed variable to be referenced. NOTE: the original developer has disputed the severity of this issue, saying "The only denial of service that is possible here is to fill up the disk with core dumps if the OS actually generates different core dumps (which is unlikely)... the bug is in the shutdown code (finis()) which leads directly to exit(3), i.e., the process would terminate anyway, no mail delivery or receiption is affected."

Published: August 28, 2006; 8:04:00 PM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2006-1173

Sendmail before 8.13.7 allows remote attackers to cause a denial of service via deeply nested, malformed multipart MIME messages that exhaust the stack during the recursive mime8to7 function for performing 8-bit to 7-bit conversion, which prevents Sendmail from delivering queued messages and might lead to disk consumption by core dump files.

Published: June 07, 2006; 7:06:00 PM -0400
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2003-0681

A "potential buffer overflow in ruleset parsing" for Sendmail 8.12.9, when using the nonstandard rulesets (1) recipient (2), final, or (3) mailer-specific envelope recipients, has unknown consequences.

Published: October 06, 2003; 12:00:00 AM -0400
V3.x:(not available)
V2.0: 7.5 HIGH
CVE-2003-0694

The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code via buffer overflow attacks, as demonstrated using the parseaddr function in parseaddr.c.

Published: October 06, 2003; 12:00:00 AM -0400
V3.x:(not available)
V2.0: 10.0 HIGH
CVE-2003-0161

The prescan() function in the address parser (parseaddr.c) in Sendmail before 8.12.9 does not properly handle certain conversions from char and int types, which can cause a length check to be disabled when Sendmail misinterprets an input value as a special "NOCHAR" control value, allowing attackers to cause a denial of service and possibly execute arbitrary code via a buffer overflow attack using messages, a different vulnerability than CVE-2002-1337.

Published: April 02, 2003; 12:00:00 AM -0500
V3.x:(not available)
V2.0: 10.0 HIGH
CVE-2002-1337

Buffer overflow in Sendmail 5.79 to 8.12.7 allows remote attackers to execute arbitrary code via certain formatted address fields, related to sender and recipient header comments as processed by the crackaddr function of headers.c.

Published: March 07, 2003; 12:00:00 AM -0500
V3.x:(not available)
V2.0: 10.0 HIGH
CVE-2001-0713

Sendmail before 8.12.1 does not properly drop privileges when the -C option is used to load custom configuration files, which allows local users to gain privileges via malformed arguments in the configuration file whose names contain characters with the high bit set, such as (1) macro names that are one character long, (2) a variable setting which is processed by the setoption function, or (3) a Modifiers setting which is processed by the getmodifiers function.

Published: October 30, 2001; 12:00:00 AM -0500
V3.x:(not available)
V2.0: 4.6 MEDIUM
CVE-2001-0714

Sendmail before 8.12.1, without the RestrictQueueRun option enabled, allows local users to cause a denial of service (data loss) by (1) setting a high initial message hop count option (-h), which causes Sendmail to drop queue entries, (2) via the -qR option, or (3) via the -qS option.

Published: October 30, 2001; 12:00:00 AM -0500
V3.x:(not available)
V2.0: 2.1 LOW
CVE-2001-0715

Sendmail before 8.12.1, without the RestrictQueueRun option enabled, allows local users to obtain potentially sensitive information about the mail queue by setting debugging flags to enable debug mode.

Published: October 30, 2001; 12:00:00 AM -0500
V3.x:(not available)
V2.0: 2.1 LOW
CVE-1999-1109

Sendmail before 8.10.0 allows remote attackers to cause a denial of service by sending a series of ETRN commands then disconnecting from the server, while Sendmail continues to process the commands after the connection has been terminated.

Published: December 22, 1999; 12:00:00 AM -0500
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-1999-0478

Denial of service in HP-UX sendmail 8.8.6 related to accepting connections.

Published: December 01, 1998; 12:00:00 AM -0500
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-1999-1309

Sendmail before 8.6.7 allows local users to gain root access via a large value in the debug (-d) command line option.

Published: August 30, 1996; 12:00:00 AM -0400
V3.x:(not available)
V2.0: 7.2 HIGH