CVE-2010-2023
EPSS 0.23%
Description
transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink 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.
How to fix CVE-2010-2023
To remediate CVE-2010-2023, upgrade the affected package to a fixed version below.
- Debian/exim4—upgrade to 4.72-1 or later
Is CVE-2010-2023 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.72-1