Use After Free in Openwrt

CVE-2020-28951

libuci in OpenWrt before 18.06.9 and 19.x before 19.07.5 may encounter a use after free when using malicious package names. This is related to uci_parse_package in file.c and uci_strdup in util.c.

Vulnerability class: Use-After-Free

EPSS: 0.017 (75.4th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-28951?
CVE-2020-28951 is a critical-severity vulnerability in Openwrt, classified under Use After Free. CVSS score: 9.8/10. Published 2020-11-19.
How severe is CVE-2020-28951?
Critical severity. CVSS v3 base score is 9.8 out of 10.