CVE-2023-33199

MEDIUM5.3EPSS 0.15%

malformed proposed intoto entries can cause a panic

Published: 5/26/2023Modified: 2/4/2026

Also known as:GHSA-frqx-jfcm-6jjrCGA-pcjx-2vw2-ch82GO-2023-1795

Description

### Impact A malformed proposed entry of the `intoto/v0.0.2` type can cause a panic on a thread within the Rekor process. The thread is recovered so the client receives a 500 error message and service still continues, so the availability impact of this is minimal. ### Patches This is fixed in v1.2.0 of Rekor. ### Workarounds No ### References Discovered by OSS-Fuzz

Affected packages (2)

Go/github.com/sigstore/rekorfrom 0, < 1.2.0
Go/github.com/sigstore/rekorfrom 0, < 1.2.0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References (4)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-33199
PATCHhttps://github.com/sigstore/rekor
WEBhttps://github.com/sigstore/rekor/commit/140c5add105179e5ffd9e3e114fd1b6b93aebbd4
WEBhttps://github.com/sigstore/rekor/security/advisories/GHSA-frqx-jfcm-6jjr