PT-2023-15850 · Crypto+++1 · Crypto+++1

Published 2023-08-22 · Updated 2023-08-26 · CVE-2022-48570

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Crypto++ versions prior to 8.5

Description The issue is related to a timing side channel in ECDSA signature generation. It is caused by the function FixedSizeAllocatorWithCleanup(), which could write to memory outside of the allocation if the allocated memory was not 16-byte aligned. This problem arose because a previous fix was intentionally removed for functionality reasons.

Recommendations For Crypto++ versions prior to 8.5, update to version 8.5 or later to resolve the issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2022-48570

Affected Products

Crypto++

Debian

References · 10

• 🔥 https://github.com/weidai11/cryptopp/issues/992 · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-48570 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-48570 · Security Note
• https://ubuntu.com/security/CVE-2022-48570 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-48570 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-48570 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-48570 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-48570 · Vendor Advisory
• https://github.com/weidai11/cryptopp/releases/tag/CRYPTOPP_8_4_0 · Note
• https://t.me/cibsecurity/68934 · Telegram Post