CVE-2010-2024: Concurrent Execution using Shared Resource with Improper Synchronization

transports/appendfile.c in Exim before 4.72, when MBX locking is enabled, allows local users to change permissions of arbitrary files or create arbitrary files, and cause a denial of service or possibly gain privileges, via a symlink attack on a lockfile in /tmp/...

CVE-2010-2023: Concurrent Execution using Shared Resource with Improper Synchronization

transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the stnlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file...