CVE-2021-40529

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Source
https://cve.org/CVERecord?id=CVE-2021-40529
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-40529.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-40529
Downstream
Related
Published
2021-09-06T19:15:07.630Z
Modified
2026-07-07T08:50:55.305869332Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "mozilla:thunderbird",
            "extracted_events": [
                {
                    "fixed": "91.12.0"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
                {
                    "introduced": "34"
                },
                {
                    "last_affected": "34"
                },
                {
                    "introduced": "35"
                },
                {
                    "last_affected": "35"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / github.com/randombit/botan

Affected ranges

Type
GIT
Repo
https://github.com/randombit/botan
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
d4bd416702a65eddcc14ee06b9c1b674631e6ae3
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.18.1"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

1.*
1.10.0
1.10.0-rc1
1.10.1
1.11.0
1.11.10
1.11.11
1.11.12
1.11.13
1.11.14
1.11.15
1.11.16
1.11.17
1.11.18
1.11.19
1.11.2
1.11.20
1.11.21
1.11.22
1.11.23
1.11.24
1.11.25
1.11.26
1.11.27
1.11.28
1.11.29
1.11.3
1.11.30
1.11.31
1.11.32
1.11.33
1.11.34
1.11.5
1.11.6
1.11.7
1.11.8
1.11.9
1.5.10
1.5.11
1.5.12
1.5.13
1.5.6
1.5.7
1.5.8
1.5.9
1.6.0
1.6.1
1.7.0
1.7.1
1.7.10
1.7.11
1.7.15
1.7.16
1.7.17
1.7.18
1.7.19
1.7.20
1.7.21
1.7.22
1.7.23
1.7.24
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.7.8
1.7.9
1.8.2
1.8.3
1.8.4
1.8.5
1.8.6
1.8.7
1.8.8
1.9.10
1.9.11
1.9.12
1.9.13
1.9.14
1.9.15
1.9.16
1.9.17
1.9.18
1.9.3
1.9.4
1.9.5
1.9.6
1.9.7
1.9.8
1.9.9
2.*
2.0.0
2.0.1
2.1.0
2.10.0
2.11.0
2.12.0
2.12.1
2.13.0
2.14.0
2.15.0
2.16.0
2.17.0
2.17.1
2.17.2
2.17.3
2.18.0
2.18.1
2.2.0
2.3.0
2.4.0
2.5.0
2.6.0
2.7.0
2.8.0
2.9.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-40529.json"