Fulcio allocates excessive memory during token parsing
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| sigstore | fulcio | affected |
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Sigstore | Fulcio | — |
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-f83f-xpx7-ffpw | Fulcio allocates excessive memory during token parsing |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.226% probability within 30 days)
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Linuxfoundation
Linuxfoundation fulcio |
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| CPEs | cpe:2.3:a:linuxfoundation:fulcio:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linuxfoundation
Linuxfoundation fulcio |
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| Metrics |
threat_severity
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threat_severity
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ssvc
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| First Time appeared |
Sigstore
Sigstore fulcio |
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| Vendors & Products |
Sigstore
Sigstore fulcio |
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| Description | Fulcio is a free-to-use certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Prior to 1.8.3, function identity.extractIssuerURL splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in the face of a malicious request with an (invalid) OIDC identity token in the payload containing many period characters, a call to extractIssuerURL incurs allocations to the tune of O(n) bytes (where n stands for the length of the function's argument), with a constant factor of about 16. This vulnerability is fixed in 1.8.3. | |
| Title | Fulcio allocates excessive memory during token parsing | |
| Weaknesses | CWE-405 | |
| References |
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| Metrics |
cvssV3_1
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