Description
Apache::SessionX versions through 2.01 for Perl create insecure session id.
Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 returns a MD5 hash seeded with the built-in rand() function, the epoch time, and the PID. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage. Predicable session ids could allow an attacker to gain access to systems.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GRICHTER | Apache::SessionX | ≤ 2.01 | — |
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 12 | libapache-sessionx-perl | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libapache-sessionx-perl | No fix yet | — |
| Ubuntu 26.04 LTS | libapache-sessionx-perl | No fix yet | — |
| Ubuntu 25.10 | libapache-sessionx-perl | No fix yet | — |
| Ubuntu 24.04 LTS | libapache-sessionx-perl | No fix yet | — |
| Ubuntu 22.04 LTS | libapache-sessionx-perl | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libapache-sessionx-perl | No fix yet | — |
| Ubuntu 18.04 LTS | libapache-sessionx-perl | No fix yet | — |
| Ubuntu 16.04 LTS | libapache-sessionx-perl | No fix yet | — |