CVE-2021-40529

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.

References

Affected packages

Git / github.com/randombit/botan

Affected ranges

Type

GIT

Repo

https://github.com/randombit/botan

Events

Introduced

Last affected

d4bd416702a65eddcc14ee06b9c1b674631e6ae3

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.18.1"
        }
    ]
}

Affected versions

1.*

1.10.0

1.10.0-rc1

1.10.1

1.11.0

1.11.1

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

1.11.4

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

1.6.2

1.6.3

1.7.0

1.7.1

1.7.10

1.7.11

1.7.12

1.7.13

1.7.14

1.7.15

1.7.16

1.7.17

1.7.18

1.7.19

1.7.2

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

1.8.0

1.8.1

1.8.2

1.8.3

1.8.4

1.8.5

1.8.6

1.8.7

1.8.8

1.9.0

1.9.1

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

1.9.2

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"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "34"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "35"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "91.12.0"
            }
        ]
    }
]