CVE - CVE-2021-40529

CVE-ID
CVE-2021-40529	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
FEDORA:FEDORA-2021-14b0d97496 URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHGYWNJQKWLTUWBNSFB4F66MQDIL3IB/ FEDORA:FEDORA-2021-8d51cac49f URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/72NB4OLD3VHJC3YF3PEP2HKF6BYURPAO/ GENTOO:GLSA-202208-14 URL:https://security.gentoo.org/glsa/202208-14 MISC:https://eprint.iacr.org/2021/923 URL:https://eprint.iacr.org/2021/923 MISC:https://github.com/randombit/botan/pull/2790 URL:https://github.com/randombit/botan/pull/2790 MISC:https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1 URL:https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1 MISC:https://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2 URL:https://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2
Assigning CNA
MITRE Corporation
Date Record Created
20210906	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210906)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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