CVE-2008-2936

Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message. NOTE: this can be leveraged to gain privileges if there is a symlink to an init script.

CVSS v2.0 NVD

6.2 MEDIUMAV:L/AC:H/Au:N/C:C/I:C/A:C

EPSS

0.99% chance of exploitation in the next 30 days, 62nd percentile

Published

2008-08-18

Updated

2024-08-07

Proof-of-concept exploits (1)

• http://www.securityfocus.com/archive/1/495882/100/0/threaded

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/6337

Security advisories

• http://secunia.com/advisories/31485
• http://secunia.com/advisories/31500
• http://www.securityfocus.com/bid/30691
• http://www.kb.cert.org/vuls/id/938323
• http://www.mandriva.com/security/advisories?name=MDVSA-2008:171
• http://www.redhat.com/support/errata/RHSA-2008-0839.html
• https://usn.ubuntu.com/636-1

References

• CVE Record
• NVD entry