CVE-2020-25579 Information disclosure in FreeBSD
An attacker can read uninitialized memory bytes from the msdosfs directory entry structure, potentially leaking sensitive kernel data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-25579?
CVE-2020-25579 is a medium-severity vulnerability in Freebsd Freebsd, published on 26 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In FreeBSD 12.2-STABLE before r368969, 11.4-STABLE before r369047, 12.2-RELEASE before p3, 12.1-RELEASE before p13 and 11.4-RELEASE before p7 msdosfs(5) was failing to zero-fill a pair of padding fields in the dirent structure, resulting in a leak of three uninitialized bytes.
Weakness: CWE-909
Which versions are affected by CVE-2020-25579?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2020-25579?
No fix has been published for CVE-2020-25579 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-25579 being exploited?
There is no known exploitation of CVE-2020-25579 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-v643-f5w3-73rg.