PT-2021-21723 · Charm · Charm

Adelapie · Published 2021-07-27 · Updated 2022-07-12 · CVE-2021-37587

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Charm version 0.43

Description The issue allows any single user to decrypt DAC-MACS or MA-ABE-YJ14 data.

Recommendations For Charm version 0.43, at the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Use of a Broken Cryptographic Algorithm

Weakness Enumeration

CWE-327

Related Identifiers

CVE-2021-37587

Affected Products

Charm

References · 8

• https://osv.dev/vulnerability/CVE-2021-37587 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37587 · Security Note
• https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html · Patch
• https://github.com/JHUISI/charm/issues/276 · Note
• https://eprint.iacr.org/2020/460 · Note
• https://www2.hci.uni-hannover.de/papers/Tan2019.pdf · Note
• https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html · Note
• https://t.me/cibsecurity/26615 · Telegram Post