CVE-2019-15901 Privilege escalation in n/a

High 8.8 Published Updated

An attacker can gain unauthorized privileges because doas fails to set group IDs correctly on Linux and NetBSD platforms.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-15901?

CVE-2019-15901 is a high-severity vulnerability in n/a, published on 18 Oct 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in slicer69 doas before 6.2 on certain platforms other than OpenBSD. A setusercontext(3) call with flags to change the UID, primary GID, and secondary GIDs was replaced (on certain platforms: Linux and possibly NetBSD) with a single setuid(2) call. This resulted in neither changing the group id nor initializing secondary group ids.

Weakness: CWE-269

Which versions are affected by CVE-2019-15901?

It affects 1 product.

Products include Doas Project Doas.

How do I fix CVE-2019-15901?

No fix has been published for CVE-2019-15901 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-15901 being exploited?

There is no known exploitation of CVE-2019-15901 in the wild and no public exploit code.

Sources

Also known as GHSA-87h5-jxx9-3c5x.

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