NVD Vulnerability Detail

CVE-2019-18222

Summary	The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.
Publication Date	Jan. 24, 2020, 2:15 a.m.
Registration Date	Jan. 26, 2021, 11:40 a.m.
Last Update	Nov. 21, 2024, 1:32 p.m.

Affected software configurations

Configuration3		or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:10.0:::::::*

Related information, measures and tools

No	URL	タグ
1	https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html	Mailing List Third Party Advisory
2	https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html	Mailing List Third Party Advisory
3	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/	Mailing List Third Party Advisory
4	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/	Mailing List Third Party Advisory
5	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/	Mailing List Third Party Advisory
6	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/	Mailing List Third Party Advisory
7	https://tls.mbed.org/tech-updates/security-advisories	Vendor Advisory
8	https://tls.mbed.org/tech-updates/security-advisories	Vendor Advisory
9	https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12	Vendor Advisory
10	https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12	Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-203	セキュリティ関連の処理に対するレスポンスの違いに起因する情報漏えい	https://cwe.mitre.org/data/definitions/203.html

JVN Vulnerability Information

Arm Mbed Crypto および TLS における情報漏えいに関する脆弱性

Title	Arm Mbed Crypto および TLS における情報漏えいに関する脆弱性
Summary	Arm Mbed Crypto および TLS には、情報漏えいに関する脆弱性が存在します。
Possible impacts	情報を取得される可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Oct. 25, 2019, midnight
Registration Date	Feb. 14, 2020, 5:41 p.m.
Last Update	Feb. 14, 2020, 5:41 p.m.

Affected System

ARM Ltd.

ARM mbed Crypto 2.1

ARM mbed TLS 2.19.1 まで

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2019-18222	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18222
National Vulnerability Database (NVD)
2	CVE-2019-18222	https://nvd.nist.gov/vuln/detail/CVE-2019-18222

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-200	https://jvndb.jvn.jp/ja/cwe/CWE-200.html

ベンダー情報

No	Name	URL
ARM mbed
1	Side channel attack on ECDSA	https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12
2	Tech Updates / Security Advisories	https://tls.mbed.org/tech-updates/security-advisories

Change Log

No	Changed Details	Date of change
1	[2020年02月14日] 掲載	Feb. 14, 2020, 5:41 p.m.