Double Free in Denx U-Boot
CVE-2020-8432
In Das U-Boot through 2020.01, a double free has been found in the cmd/gpt.c do_rename_gpt_parts() function. Double freeing may result in a write-what-where condition, allowing an attacker to execute arbitrary code. NOTE: this vulnerablity was introduced when attempting to fix a memory leak identified by static analysis.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.031 (87.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.031 · change: -0.005
Affected products
- Denx U-Boot
- openSUSE Leap — versions 15.2
Weakness classification (CWE)
References
- www.mail-archive.com/u-boot@lists.denx.de/msg354060.html
- www.mail-archive.com/u-boot@lists.denx.de/msg354114.html
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8432?
- CVE-2020-8432 is a critical-severity vulnerability in Denx U-Boot, classified under Double Free. CVSS score: 9.8/10. Published 2020-01-29.
- How severe is CVE-2020-8432?
- Critical severity. CVSS v3 base score is 9.8 out of 10.