Description
Linux kernel 2.6, when using vservers, allows local users to access resources of other vservers via a symlink attack in /proc.
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 4.0 | linux-2.6 | 2.6.18.dfsg.1-18etch1 | DSA-1494-1 |
Advisories 1
- DSA-1494-1 linux-2.6 - privilege escalation Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-1494 vendor-advisory
- 28875 third-party-advisory
- 27798 vdb-entry
- linux-kernel-proc-unauth-access(40486) vdb-entry
- 27704 vdb-entry