PT-2018-13086 · Legion Of The Bouncy Castle · Pycryptodome

Published 2018-08-20 · Updated 2024-01-11 · CVE-2018-15560

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions PyCryptodome versions prior to 3.6.6

Description The issue is related to an integer overflow in the data len variable in AESNI.c, which affects the AESNI encrypt and AESNI decrypt functions. This leads to the mishandling of messages shorter than 16 bytes.

Recommendations For versions prior to 3.6.6, update to version 3.6.6 or later to resolve the issue. As a temporary workaround, consider avoiding the use of messages shorter than 16 bytes with the AESNI encrypt and AESNI decrypt functions until a patch is applied.

Exploit

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2018-15560

GHSA-HGG3-G7GR-66R7

PYSEC-2018-21

Affected Products

Pycryptodome

References · 10

• 🔥 https://github.com/Legrandin/pycryptodome/issues/198 · Exploit
• 🔥 https://whitehatck01.blogspot.com/2018/08/integer-overflow-vulnerability-in.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-15560 · Security Note
• https://osv.dev/vulnerability/PYSEC-2018-21 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-15560 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-hgg3-g7gr-66r7 · Vendor Advisory
• https://github.com/Legrandin/pycryptodome · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/pycryptodome/PYSEC-2018-21.yaml · Note
• https://github.com/advisories/GHSA-hgg3-g7gr-66r7 · Note
• https://t.me/cvenotify/67055 · Telegram Post