Description
Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
Passive
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
- ruby / net-imap>= 0.4.0, < 0.4.24 – >= 0.4.0, < 0.4.24
- ruby / net-imap>= 0.5.0, < 0.5.14 – >= 0.5.0, < 0.5.14
- ruby / net-imap>= 0.6.0, < 0.6.4 – >= 0.6.0, < 0.6.4
References
- VENDOR_ADVISORYhttps://github.com/ruby/net-imap/security/advisories/GHSA-87pf-fpwv-p7m7
- PATCHhttps://github.com/ruby/net-imap/commit/158d0b505074397cdb5ceb58935e42dd2bcfa612
- PATCHhttps://github.com/ruby/net-imap/commit/808001bc45c06f7297a7e96d341279e041a7f7f4
- PATCHhttps://github.com/ruby/net-imap/commit/99f59eab6064955a23debd95410263ad144df758
- PATCHhttps://github.com/ruby/net-imap/releases/tag/v0.4.24
- PATCHhttps://github.com/ruby/net-imap/releases/tag/v0.5.14
- PATCHhttps://github.com/ruby/net-imap/releases/tag/v0.6.4