PT-2018-11171 · Botan+1 · Botan+1

Keegan Ryan · Published 2018-06-15 · Updated 2024-06-15 · CVE-2018-12435

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Botan versions 2.5.0 through 2.6.0

Description The issue allows a memory-cache side-channel attack on ECDSA signatures, also known as the Return Of the Hidden Number Problem or ROHNP. This is related to files dsa/dsa.cpp, ec group/ec group.cpp, and ecdsa/ecdsa.cpp. To exploit this, an attacker needs access to either the local machine or a different virtual machine on the same physical host.

Recommendations For Botan versions 2.5.0 through 2.6.0, update to version 2.7.0 or later to resolve the issue.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2019-1441

CVE-2018-12435

OPENSUSE-SU-2024:10594-1

Affected Products

Alt Linux

Botan

References · 21

• 🔥 https://nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem · Exploit
• https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3 · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2024:10594-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-12435 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12435 · Security Note
• https://errata.altlinux.org/ALT-PU-2019-1441 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-12435 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-12435 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2018-12435 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20187 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-12435 · Vendor Advisory
• https://suse.com/security/cve/CVE-2017-2801 · Note
• https://packages.altlinux.org/ru/vuln/CVE-2018-12435 · Note
• https://botan.randombit.net/security.html · Note
• https://suse.com/security/cve/CVE-2018-20187 · Note