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CVE-2020-28407

Date: November 2, 2023

In swtpm before 0.4.2 and 0.5.x before 0.5.1, a local attacker may be able to overwrite arbitrary files via a symlink attack against a temporary file such as TMP2-00.permall.

Language: C

Severity Score

Related Resources (7)

https://bugzilla.suse.com/show_bug.cgi?id=1198395
https://nvd.nist.gov/vuln/detail/CVE-2020-28407
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-28407
https://github.com/stefanberger/swtpm/releases/tag/v0.4.2
https://github.com/stefanberger/swtpm/releases/tag/v0.5.1
https://github.com/stefanberger/swtpm/commit/e9c9778d5c35ef077aed1ec6601b47ac478f8185
https://www.mend.io/vulnerability-database/CVE-2020-28407

Severity Score

Weakness Type (CWE)

Improper Link Resolution Before File Access ('Link Following')

CWE-59

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): HIGH

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