Vulnerability Details : 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 category: Memory CorruptionExecute code
Products affected by CVE-2020-8432
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
- cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-8432
0.62%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-8432
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-8432
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The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.Assigned by: nvd@nist.gov (Primary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-8432
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https://www.mail-archive.com/u-boot@lists.denx.de/msg354114.html
Re: Double free vulnerability in do_rename_gpt_partsMailing List;Third Party Advisory
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https://www.mail-archive.com/u-boot@lists.denx.de/msg354060.html
Double free vulnerability in do_rename_gpt_partsMailing List;Third Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.html
[security-announce] openSUSE-SU-2020:1869-1: important: Security updateMailing List;Third Party Advisory
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