CVE-2010-2023

Publication date 7 June 2010

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

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.

Read the notes from the security team

Status

No maintained releases are affected by this CVE.

Package Ubuntu Release Status
exim4 10.10 maverick
Fixed 4.72-1ubuntu1
10.04 LTS lucid
Fixed 4.71-3ubuntu1.1
9.10 karmic
Fixed 4.69-11ubuntu4.2
9.04 jaunty Ignored end of life
8.04 LTS hardy
Fixed 4.69-2ubuntu0.3
6.06 LTS dapper
Fixed 4.60-3ubuntu3.3

Notes

mdeslaur

not default configuration

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
exim4