CVE-2021-28091 : Lasso all versions prior to 2.7.0 has improper verification of a cryptographic s

Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature.

Published 2021-06-04 15:15:08

Updated 2021-12-02 13:55:30

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2021-28091

Debian » Debian Linux » Version: 9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Matching versions
Debian » Debian Linux » Version: 10.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 33
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 34
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Matching versions
Entrouvert » Lasso
Versions before (<) 2.7.0
cpe:2.3:a:entrouvert:lasso:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.77%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 72 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE-347 Improper Verification of Cryptographic Signature

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Assigned by: nvd@nist.gov (Primary)

http://listes.entrouvert.com/arc/lasso/

lasso - lasso - confirm_action
Product
https://www.debian.org/security/2021/dsa-4926

Debian -- Security Information -- DSA-4926-1 lasso
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SI4YAQF4VEV2KHQ6OXXZL7CJK7IZQ3EG/

[SECURITY] Fedora 34 Update: lasso-2.7.0-1.fc34 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YSVWOHBBWLI2RB5C6TXINFEJRT4YSD3D/

[SECURITY] Fedora 33 Update: lasso-2.7.0-1.fc33 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00013.html

[SECURITY] [DLA 2684-1] lasso security update
Mailing List;Third Party Advisory
https://git.entrouvert.org/lasso.git/tree/NEWS?id=v2.7.0

lasso.git - Free software C library wich implements SAML 2.0 and Liberty Alliance standards
Release Notes;Vendor Advisory
https://git.entrouvert.org/lasso.git/commit/?id=076a37d7f0eb74001127481da2d355683693cde9

lasso.git - Free software C library wich implements SAML 2.0 and Liberty Alliance standards
Patch;Vendor Advisory

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