Description
l2tpd 0.67 does not initialize the random number generator, which allows remote attackers to hijack sessions.
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 3.0 | l2tpd | 0.67-1.1 | DSA-152 |
Advisories 1
- DSA-152 l2tpd - missing random seed Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-152 vendor-advisory
- l2tpd-rand-number-predictable(9845) vdb-entry
- 5451 vdb-entry