Exim
by Exim
Source repositories
CVEs (74)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2022-37452 | 0.00 | — | 0.03 | Aug 7, 2022 | 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 | 0.00 | — | 0.03 | Aug 6, 2022 | 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 | 0.00 | — | 0.02 | Aug 10, 2021 | The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending. | |||
| CVE-2021-27216 | 0.00 | — | 0.01 | May 6, 2021 | 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-2020-28026 | 0.00 | — | 0.09 | May 6, 2021 | 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… | |||
| CVE-2020-28025 | 0.00 | — | 0.03 | May 6, 2021 | 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 | 0.00 | — | 0.04 | May 6, 2021 | 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 | 0.00 | — | 0.03 | May 6, 2021 | 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 | 0.00 | — | 0.03 | May 6, 2021 | 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 | 0.00 | — | 0.04 | May 6, 2021 | 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-2020-28019 | 0.00 | — | 0.61 | May 6, 2021 | 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-2020-28017 | 0.00 | — | 0.36 | May 6, 2021 | 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 | 0.00 | — | 0.00 | May 6, 2021 | 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 | 0.00 | — | 0.00 | May 6, 2021 | 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 | 0.00 | — | 0.01 | May 6, 2021 | 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 | 0.00 | — | 0.00 | May 6, 2021 | 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. | |||
| CVE-2020-28012 | 0.00 | — | 0.00 | May 6, 2021 | 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. | |||
| CVE-2020-28011 | 0.00 | — | 0.00 | May 6, 2021 | 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. | |||
| CVE-2020-28010 | 0.00 | — | 0.00 | May 6, 2021 | 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). | |||
| CVE-2020-28009 | 0.00 | — | 0.00 | May 6, 2021 | 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… |
- CVE-2022-37452Aug 7, 2022risk 0.00cvss —epss 0.03
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-2022-37451Aug 6, 2022risk 0.00cvss —epss 0.03
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-2021-38371Aug 10, 2021risk 0.00cvss —epss 0.02
The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.
- CVE-2021-27216May 6, 2021risk 0.00cvss —epss 0.01
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-2020-28026May 6, 2021risk 0.00cvss —epss 0.09
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…
- CVE-2020-28025May 6, 2021risk 0.00cvss —epss 0.03
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-2020-28024May 6, 2021risk 0.00cvss —epss 0.04
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-2020-28023May 6, 2021risk 0.00cvss —epss 0.03
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-2020-28022May 6, 2021risk 0.00cvss —epss 0.03
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-2020-28021May 6, 2021risk 0.00cvss —epss 0.04
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-2020-28019May 6, 2021risk 0.00cvss —epss 0.61
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-2020-28017May 6, 2021risk 0.00cvss —epss 0.36
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-2020-28016May 6, 2021risk 0.00cvss —epss 0.00
Exim 4 before 4.94.2 allows an off-by-two Out-of-bounds Write because "-F ''" is mishandled by parse_fix_phrase.
- CVE-2020-28015May 6, 2021risk 0.00cvss —epss 0.00
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-2020-28014May 6, 2021risk 0.00cvss —epss 0.01
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-2020-28013May 6, 2021risk 0.00cvss —epss 0.00
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.
- CVE-2020-28012May 6, 2021risk 0.00cvss —epss 0.00
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.
- CVE-2020-28011May 6, 2021risk 0.00cvss —epss 0.00
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.
- CVE-2020-28010May 6, 2021risk 0.00cvss —epss 0.00
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).
- CVE-2020-28009May 6, 2021risk 0.00cvss —epss 0.00
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…
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