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cve[email protected]CVE-2021-40529
HistorySep 06, 2021 - 7:15 p.m.

CVE-2021-40529

2021-09-0619:15:07
CWE-327
[email protected]
web.nvd.nist.gov
107
botan
elgamal
plaintext recovery
cve-2021-40529
thunderbird
nvd
openpgp
cryptographic libraries

2.6 Low

CVSS2

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:H/Au:N/C:P/I:N/A:N

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

5.7 Medium

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

68.8%

JSON

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.

Affected configurations

NVD
Node
botan_projectbotanRange≤2.18.1
Node
fedoraprojectfedoraMatch34
OR
fedoraprojectfedoraMatch35
Node
mozillathunderbirdRange<91.12.0

Related

alpinelinux 1
fedora 2
veracode 1
osv 1
openvas 5
debiancve 1
nvd 1
gitlab 1
cvelist 1
prion 1
mageia 1
ubuntucve 1
suse 2
nessus 4
gentoo 1
alpinelinux
alpinelinux
CVE-2021-40529
2021-09-06 19:15:07
fedora
fedora
[SECURITY] Fedora 34 Update: botan2-2.17.3-4.fc34
2021-11-16 15:40:58
[SECURITY] Fedora 35 Update: botan2-2.18.2-1.fc35
2021-11-12 00:38:33
veracode
veracode
Information Disclosure
2021-09-12 13:25:00
osv
osv
CVE-2021-40529
2021-09-06 19:15:07
openvas
openvas
Fedora: Security Advisory for botan2 (FEDORA-2021-14b0d97496)
2021-11-14 00:00:00
Fedora: Security Advisory for botan2 (FEDORA-2021-8d51cac49f)
2021-11-18 00:00:00
Mageia: Security Advisory (MGASA-2021-0563)
2022-01-28 00:00:00
debiancve
debiancve
CVE-2021-40529
2021-09-06 19:15:07
nvd
nvd
CVE-2021-40529
2021-09-06 19:15:07
gitlab
gitlab
Use of a Broken or Risky Cryptographic Algorithm
2021-09-06 00:00:00
cvelist
cvelist
CVE-2021-40529
2021-09-06 18:45:08
prion
prion
Cross site scripting
2021-09-06 19:15:00
mageia
mageia
Updated botan2 packages fix security vulnerability
2021-12-19 15:26:08
ubuntucve
ubuntucve
CVE-2021-40529
2021-09-06 00:00:00
suse
suse
Security update for MozillaThunderbird (important)
2021-12-22 00:00:00
Security update for MozillaThunderbird (important)
2021-12-29 00:00:00
nessus
nessus
openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:4150-1)
2021-12-25 00:00:00
openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:1635-1)
2021-12-30 00:00:00
SUSE SLED15 / SLES15 Security Update : MozillaThunderbird (SUSE-SU-2021:4150-1)
2021-12-25 00:00:00
gentoo
gentoo
Mozilla Thunderbird: Multiple Vulnerabilities
2022-08-10 00:00:00

2.6 Low

CVSS2

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:H/Au:N/C:P/I:N/A:N

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

5.7 Medium

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

68.8%

JSON
Related for CVE-2021-40529
alpinelinux1fedora2veracode1osv1openvas5debiancve1nvd1gitlab1cvelist1prion1mageia1ubuntucve1suse2nessus4gentoo1