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Search Parameters:
  • Keyword (text search): cpe:2.3:a:exim:exim:4.54:*:*:*:*:*:*:*
  • CPE Name Search: true
There are 35 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2021-38371

The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.

Published: August 10, 2021; 11:15:08 AM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2021-27216

Exim 4 before 4.94.2 has Execution with Unnecessary Privileges. By leveraging a delete_pid_file race condition, a local user can delete arbitrary files as root. This involves the -oP and -oPX options.

Published: May 06, 2021; 9:15:12 AM -0400
V3.1: 6.3 MEDIUM
V2.0: 6.3 MEDIUM
CVE-2020-28026

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN). Certain uses of ORCPT= can place a newline into a spool header file, and indirectly allow unauthenticated remote attackers to execute arbitrary commands as root.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 9.8 CRITICAL
V2.0: 9.3 HIGH
CVE-2020-28025

Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between sig->bodyhash.len and b->bh.len; thus, a crafted DKIM-Signature header might lead to a leak of sensitive information from process memory.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2020-28024

Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 9.8 CRITICAL
V2.0: 7.5 HIGH
CVE-2020-28023

Exim 4 before 4.94.2 allows Out-of-bounds Read. smtp_setup_msg may disclose sensitive information from process memory to an unauthenticated SMTP client.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2020-28022

Exim 4 before 4.94.2 has Improper Restriction of Write Operations within the Bounds of a Memory Buffer. This occurs when processing name=value pairs within MAIL FROM and RCPT TO commands.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 9.8 CRITICAL
V2.0: 7.5 HIGH
CVE-2020-28021

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. An authenticated remote SMTP client can insert newline characters into a spool file (which indirectly leads to remote code execution as root) via AUTH= in a MAIL FROM command.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 8.8 HIGH
V2.0: 9.0 HIGH
CVE-2020-28020

Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 9.8 CRITICAL
V2.0: 7.5 HIGH
CVE-2020-28017

Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow in receive_add_recipient via an e-mail message with fifty million recipients. NOTE: remote exploitation may be difficult because of resource consumption.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 9.8 CRITICAL
V2.0: 7.5 HIGH
CVE-2020-28016

Exim 4 before 4.94.2 allows an off-by-two Out-of-bounds Write because "-F ''" is mishandled by parse_fix_phrase.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-28015

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. Local users can alter the behavior of root processes because a recipient address can have a newline character.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-28014

Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. The -oP option is available to the exim user, and allows a denial of service because root-owned files can be overwritten.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 6.1 MEDIUM
V2.0: 5.6 MEDIUM
CVE-2020-28013

Exim 4 before 4.94.2 allows Heap-based Buffer Overflow because it mishandles "-F '.('" on the command line, and thus may allow privilege escalation from any user to root. This occurs because of the interpretation of negative sizes in strncpy.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-28012

Exim 4 before 4.94.2 allows Exposure of File Descriptor to Unintended Control Sphere because rda_interpret uses a privileged pipe that lacks a close-on-exec flag.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-28011

Exim 4 before 4.94.2 allows Heap-based Buffer Overflow in queue_run via two sender options: -R and -S. This may cause privilege escalation from exim to root.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-28010

Exim 4 before 4.94.2 allows Out-of-bounds Write because the main function, while setuid root, copies the current working directory pathname into a buffer that is too small (on some common platforms).

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-28009

Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow because get_stdinput allows unbounded reads that are accompanied by unbounded increases in a certain size variable. NOTE: exploitation may be impractical because of the execution time needed to overflow (multiple days).

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-28008

Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the spool directory (owned by a non-root user), an attacker can write to a /var/spool/exim4/input spool header file, in which a crafted recipient address can indirectly lead to command execution.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-28007

Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the log directory (owned by a non-root user), a symlink or hard link attack allows overwriting critical root-owned files anywhere on the filesystem.

Published: May 06, 2021; 9:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH