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exim vulnerabilities and exploits
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641
VMScore
CVE-2020-28007
Exim 4 prior to 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.
Exim Exim
641
VMScore
CVE-2020-28008
Exim 4 prior to 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 c...
Exim Exim
641
VMScore
CVE-2020-28009
Exim 4 prior to 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 d...
Exim Exim
641
VMScore
CVE-2020-28010
Exim 4 prior to 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).
Exim Exim
668
VMScore
CVE-2020-28017
Exim 4 prior to 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.
Exim Exim
2 Github repositories
668
VMScore
CVE-2020-28018
Exim 4 prior to 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.
Exim Exim
2 Github repositories
801
VMScore
CVE-2020-28021
Exim 4 prior to 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.
Exim Exim
668
VMScore
CVE-2020-28022
Exim 4 prior to 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.
Exim Exim
445
VMScore
CVE-2020-28023
Exim 4 prior to 4.94.2 allows Out-of-bounds Read. smtp_setup_msg may disclose sensitive information from process memory to an unauthenticated SMTP client.
Exim Exim
668
VMScore
CVE-2020-28024
Exim 4 prior to 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.
Exim Exim
VMScore
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-5324
path traversal
CVE-2024-4743
CVE-2024-5184
TCP
CVE-2024-27822
code injection
CVE-2024-28995
CVE-2023-20938
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