CVE-2026-3337

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Source
https://cve.org/CVERecord?id=CVE-2026-3337
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3337.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-3337
Aliases
Published
2026-03-02T22:16:32.093Z
Modified
2026-04-02T13:34:30.812442Z
Severity
  • 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Observable timing discrepancy in AES-CCM decryption in AWS-LC allows an unauthenticated user to potentially determine authentication tag validity via timing analysis.

The impacted implementations are through the EVP CIPHER API: EVPaes128ccm, EVPaes192ccm, and EVPaes256_ccm.

Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.

References

Affected packages

Git / github.com/aws/aws-lc

Affected ranges

Type
GIT
Repo
https://github.com/aws/aws-lc
Events
Introduced
19d9ace40f6770e062b1e9ec1d46935b300b948e
Fixed
37d86461a95782fd5d8b77873f9e1cb134ea2f95
Introduced
190be0667cf1f7b39bed2c96760f08a6295b652b
Fixed
e50a5f29ee416a7c99be4e72957e8f96aa51dbb9
Database specific 
{
    "versions": [
        {
            "introduced": "1.21.0"
        },
        {
            "fixed": "1.69.0"
        },
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.2.0"
        }
    ]
}

Affected versions

AWS-LC-FIPS-3.*
AWS-LC-FIPS-3.0.0
AWS-LC-FIPS-3.1.0
AWS-LC-FIPS-NETOS-v1.*
AWS-LC-FIPS-NETOS-v1.29.1
v1.*
v1.21.0
v1.22.0
v1.23.0
v1.24.0
v1.24.1
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.30.0
v1.30.1
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.34.1
v1.34.2
v1.35.0
v1.35.1
v1.36.0
v1.36.1
v1.37.0
v1.38.0
v1.39.0
v1.40.0
v1.41.0
v1.41.1
v1.42.0
v1.43.0
v1.44.0
v1.45.0
v1.46.0
v1.46.1
v1.47.0
v1.48.0
v1.48.1
v1.48.2
v1.48.3
v1.48.4
v1.48.5
v1.49.0
v1.49.1
v1.50.0
v1.50.1
v1.51.0
v1.51.1
v1.51.2
v1.52.0
v1.52.1
v1.53.0
v1.53.1
v1.54.0
v1.55.0
v1.56.0
v1.57.0
v1.57.1
v1.58.0
v1.58.1
v1.59.0
v1.60.0
v1.61.0
v1.61.1
v1.61.2
v1.61.3
v1.61.4
v1.62.0
v1.62.1
v1.63.0
v1.64.0
v1.65.0
v1.65.1
v1.66.0
v1.66.1
v1.66.2
v1.67.0
v1.68.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3337.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0.13.0"
            },
            {
                "fixed": "0.13.12"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0.14.0"
            },
            {
                "fixed": "0.38.0"
            }
        ]
    }
]
vanir_signatures 
[
    {
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "280062061547051961335040704369984099310",
                "59664889025735122861240116516903930146",
                "186491128754061308478941699848016839286",
                "44181818329089001225657707026569626534",
                "282671460555005303787248492658194669900",
                "44166289732973386761265031133498341556",
                "69817426707179551398336772625900832321",
                "239604874112229803444893855053965253409"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/aws/aws-lc/commit/37d86461a95782fd5d8b77873f9e1cb134ea2f95",
        "id": "CVE-2026-3337-855e3c0b",
        "target": {
            "file": "crypto/pkcs7/pkcs7.c"
        }
    },
    {
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "158135805622728784577576606639969624490",
            "length": 2013.0
        },
        "source": "https://github.com/aws/aws-lc/commit/37d86461a95782fd5d8b77873f9e1cb134ea2f95",
        "id": "CVE-2026-3337-dc456f72",
        "target": {
            "file": "crypto/pkcs7/pkcs7.c",
            "function": "pkcs7_signature_verify"
        }
    },
    {
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "273085439071910207277154200794602786021",
                "245468422534222847041479036646193063170",
                "54101678788672349656736281287579255679",
                "151537791126997683886016466598243283979"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/aws/aws-lc/commit/e50a5f29ee416a7c99be4e72957e8f96aa51dbb9",
        "id": "CVE-2026-3337-ef5cea45",
        "target": {
            "file": "crypto/fipsmodule/cipher/e_aesccm.c"
        }
    }
]