CVE-2018-1000539
MEDIUM5.3EPSS 0.14%ruby-json-jwt - security update
Published: 7/31/2018Modified: 4/28/2026
Description
Nov json-jwt version >= 0.5.0 && < 1.9.4 contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability in Decryption of AES-GCM encrypted JSON Web Tokens that can result in Attacker can forge a authentication tag. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in 1.9.4 and later.
Affected packages (3)
- Debian/ruby-json-jwtfrom 0, < 1.9.4-1
- Debian/ruby-json-jwtfrom 0, < 1.6.2-1+deb9u1
- RubyGems/json-jwt>= 0.5.1, < 1.9.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2018-1000539
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-1000539
- PATCHhttps://github.com/nov/json-jwt
- WEBhttps://github.com/nov/json-jwt/commit/a3b2147f0f6d9aca653e7a30e453d3a92b33413f
- WEBhttps://github.com/nov/json-jwt/pull/62
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/json-jwt/CVE-2018-1000539.yml
- WEBhttps://www.debian.org/security/2018/dsa-4283