Buffer overflow in Freebsd
CVE-2021-29630
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.
Vulnerability class: Buffer Overflow
EPSS: 0.016 (73.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Freebsd — versions 11.4, 12.2, 13.0
- N/a Freebsd — versions FreeBSD 13.0-RELEASE before p4, 12.2-RELEASE before p10, 11.4-RELEASE before p13
Weakness classification (CWE)
References
- secteam@freebsd.org (Patch, x_refsource_MISC, Vendor Advisory)
- secteam@freebsd.org (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-29630?
- CVE-2021-29630 is a high-severity vulnerability in Freebsd, classified under Out-of-bounds Write. CVSS score: 8.1/10. Published 2021-08-30.
- How severe is CVE-2021-29630?
- High severity. CVSS v3 base score is 8.1 out of 10.