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ruby: use of predictable source port and transaction id in DNS requests done by resolv.rb module

🗓️ 21 Oct 2008 14:52:00Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Ruby resolv.rb in older versions uses predictable source ports and sequential transaction IDs, enabling spoofed DNS responses.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
BDU FSTEC		Vulnerabilities of the Debian GNU/Linux operating system that allow a remote attacker to compromise the accessibility of protected information
7 Jul 201600:00
–bdu_fstec
BDU FSTEC		Vulnerabilities of the Debian GNU/Linux operating system that allow a remote attacker to compromise the accessibility of protected information
7 Jul 201600:00
–bdu_fstec
BDU FSTEC		Vulnerabilities of the Debian GNU/Linux operating system that allow a remote attacker to compromise the accessibility of protected information
7 Jul 201600:00
–bdu_fstec
FreeBSD		ruby -- multiple vulnerabilities in safe level
8 Aug 200800:00
–freebsd
FreeBSD		ruby -- DoS vulnerability in WEBrick
8 Aug 200800:00
–freebsd
Tenable Nessus		CentOS 3 : ruby (CESA-2008:0896)
22 Oct 200800:00
–nessus
Tenable Nessus		CentOS 4 / 5 : ruby (CESA-2008:0897)
28 Oct 200800:00
–nessus
Tenable Nessus		Debian DSA-1651-1 : ruby1.8 - several vulnerabilities
13 Oct 200800:00
–nessus
Tenable Nessus		Debian DSA-1652-1 : ruby1.9 - several vulnerabilities
13 Oct 200800:00
–nessus
Tenable Nessus		Fedora 8 : ruby-1.8.6.287-2.fc8 (2008-8736)
10 Oct 200800:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux4i386irb0:1.8.1-7.el4_7.1irb-0:1.8.1-7.el4_7.1.i386.rpm
Red Hat Enterprise Linux4ia64irb0:1.8.1-7.el4_7.1irb-0:1.8.1-7.el4_7.1.ia64.rpm
Red Hat Enterprise Linux4ppcirb0:1.8.1-7.el4_7.1irb-0:1.8.1-7.el4_7.1.ppc.rpm
Red Hat Enterprise Linux4s390irb0:1.8.1-7.el4_7.1irb-0:1.8.1-7.el4_7.1.s390.rpm
Red Hat Enterprise Linux4s390xirb0:1.8.1-7.el4_7.1irb-0:1.8.1-7.el4_7.1.s390x.rpm
Red Hat Enterprise Linux4x86_64irb0:1.8.1-7.el4_7.1irb-0:1.8.1-7.el4_7.1.x86_64.rpm
Red Hat Enterprise Linux4i386ruby0:1.8.1-7.el4_7.1ruby-0:1.8.1-7.el4_7.1.i386.rpm
Red Hat Enterprise Linux4ia64ruby0:1.8.1-7.el4_7.1ruby-0:1.8.1-7.el4_7.1.ia64.rpm
Red Hat Enterprise Linux4ppcruby0:1.8.1-7.el4_7.1ruby-0:1.8.1-7.el4_7.1.ppc.rpm
Red Hat Enterprise Linux4s390ruby0:1.8.1-7.el4_7.1ruby-0:1.8.1-7.el4_7.1.s390.rpm
Rows per page

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25 Jun 2026 10:35Current
6.8Medium risk
Vulners AI Score6.8
CVSS 25.8
EPSS0.02415
rubydomain name system spoofingsource port predictabilitytransaction id predictabilityresolv older versions
3