CVE-2008-1940 Security feature bypass in n/a

Medium 4.6 Published Updated

Local attackers can bypass RBAC restrictions on setfsuid and setfsgid calls in grsecurity, potentially leading to privilege escalation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2008-1940?

CVE-2008-1940 is a medium-severity vulnerability in n/a, published on 24 Apr 2008. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not enforce user_transition_deny and user_transition_allow rules for the (1) sys_setfsuid and (2) sys_setfsgid calls, which allows local users to bypass restrictions for those calls.

Weakness: CWE-264

Which versions are affected by CVE-2008-1940?

It affects 1 product.

Products include Grsecurity Grsecurity Kernel Patch.

How do I fix CVE-2008-1940?

No fix has been published for CVE-2008-1940 yet. Limit exposure of the affected software until one is available.

Is CVE-2008-1940 being exploited?

There is no known exploitation of CVE-2008-1940 in the wild and no public exploit code.

Sources

Also known as GHSA-42w7-p64v-gxj9.

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