CVE-2021-29630 Memory corruption in FreeBSD
A stack buffer overflow in the ggatec daemon allows remote code execution via a malicious network response.
- 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-2021-29630?
CVE-2021-29630 is a high-severity memory corruption vulnerability in Freebsd Freebsd, published on 30 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In FreeBSD 13.0-STABLE before n246938-0729ba2f49c9, 12.2-STABLE before r370383, 11.4-STABLE before r370381, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, the ggatec daemon does not validate the size of a response before writing it to a fixed-sized buffer allowing a malicious attacker in a privileged network position to overwrite the stack of ggatec and potentially execute arbitrary code.
Weakness: CWE-787
Which versions are affected by CVE-2021-29630?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2021-29630?
No fix has been published for CVE-2021-29630 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-29630 being exploited?
There is no known exploitation of CVE-2021-29630 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-hf69-rp3w-rxrx.