Description
The postinst script in ppp 2.4.4rel on Debian GNU/Linux allows local users to overwrite arbitrary files via a symlink attack on the (1) /tmp/probe-finished or (2) /tmp/ppp-errors temporary file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ppp | No fix yet | — |
| Debian 13 | ppp | No fix yet | — |
| Debian 12 | ppp | No fix yet | — |