Vulnerabilities (CVE)

Filtered by vendor Exim Subscribe
Filtered by product Exim
Total 49 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-51766 3 Debian, Exim, Fedoraproject 4 Debian Linux, Exim, Extra Packages For Enterprise Linux and 1 more 2024-11-21 N/A 5.3 MEDIUM
Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING 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 Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not.
CVE-2022-37452 2 Debian, Exim 2 Debian Linux, Exim 2024-11-21 N/A 9.8 CRITICAL
Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set.
CVE-2022-37451 2 Exim, Fedoraproject 2 Exim, Fedora 2024-11-21 N/A 7.5 HIGH
Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc.
CVE-2021-38371 1 Exim 1 Exim 2024-11-21 5.0 MEDIUM 7.5 HIGH
The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.
CVE-2021-27216 1 Exim 1 Exim 2024-11-21 6.3 MEDIUM 6.3 MEDIUM
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.
CVE-2020-8015 2 Exim, Opensuse 2 Exim, Opensuse 2024-11-21 7.2 HIGH 8.4 HIGH
A UNIX Symbolic Link (Symlink) Following vulnerability in the packaging of exim in openSUSE Factory allows local attackers to escalate from user mail to root. This issue affects: openSUSE Factory exim versions prior to 4.93.0.4-3.1.
CVE-2020-28026 1 Exim 1 Exim 2024-11-21 9.3 HIGH 9.8 CRITICAL
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.
CVE-2020-28025 1 Exim 1 Exim 2024-11-21 5.0 MEDIUM 7.5 HIGH
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.
CVE-2020-28024 1 Exim 1 Exim 2024-11-21 7.5 HIGH 9.8 CRITICAL
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.
CVE-2020-28023 1 Exim 1 Exim 2024-11-21 5.0 MEDIUM 7.5 HIGH
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.
CVE-2020-28022 1 Exim 1 Exim 2024-11-21 7.5 HIGH 9.8 CRITICAL
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.
CVE-2020-28021 1 Exim 1 Exim 2024-11-21 9.0 HIGH 8.8 HIGH
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.
CVE-2020-28020 1 Exim 1 Exim 2024-11-21 7.5 HIGH 9.8 CRITICAL
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.
CVE-2020-28019 1 Exim 1 Exim 2024-11-21 5.0 MEDIUM 7.5 HIGH
Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA.
CVE-2020-28018 1 Exim 1 Exim 2024-11-21 7.5 HIGH 9.8 CRITICAL
Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.
CVE-2020-28017 1 Exim 1 Exim 2024-11-21 7.5 HIGH 9.8 CRITICAL
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.
CVE-2020-28016 1 Exim 1 Exim 2024-11-21 7.2 HIGH 7.8 HIGH
Exim 4 before 4.94.2 allows an off-by-two Out-of-bounds Write because "-F ''" is mishandled by parse_fix_phrase.
CVE-2020-28015 1 Exim 1 Exim 2024-11-21 7.2 HIGH 7.8 HIGH
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.
CVE-2020-28014 1 Exim 1 Exim 2024-11-21 5.6 MEDIUM 6.1 MEDIUM
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.
CVE-2020-28013 1 Exim 1 Exim 2024-11-21 7.2 HIGH 7.8 HIGH
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.