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Critical USN-3439-1 7 CVEs

ruby1.9.1 vulnerabilities

Published Oct 5, 2017 · Updated Apr 27, 2026

Ecosystem: Ubuntu

Summary

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to cause a buffer overrun.
(CVE-2017-0898)

Yusuke Endoh discovered that Ruby incorrectly handled certain files.
An attacker could use this to execute terminal escape sequences.
(CVE-2017-0899)

Yusuke Endoh discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to cause a denial of service.
(CVE-2017-0900)

It was discovered that Ruby incorrectly handled certain files.
An attacker could use this to overwrite any file on the filesystem.
(CVE-2017-0901)

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to execute arbitrary code.
(CVE-2017-10784)

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to cause a denial of service.
(CVE-2017-14033)

It was discovered that Ruby incorrectly handled certain files.
An attacker could use this to expose sensitive information.
(CVE-2017-14064)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS ruby1.9.1 1.9.3.484-2ubuntu1.5

Vulnerabilities 7

  • Critical 9.8
    CVE-2017-0899 EPSS 11%

    RubyGems Code Injection vulnerability

    RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences.

    HackerOne RubyGems ruby2.3 ruby Debian Ubuntu Alpine RubyGems
  • High 8.8
    CVE-2017-10784 EPSS 16%

    WEBrick RCE Vulnerability

    The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user nam…

    ruby2.3 ruby ruby2.0 ruby1.9.1 Ubuntu Alpine RubyGems
  • High 7.5
    CVE-2017-0900

    RubyGems Improper Input Validation vulnerability

    RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications to cause a denial of service attack against RubyGems clients who have issued a `query` command.

    ruby2.3 ruby jruby ruby1.9.1 Debian Ubuntu Alpine RubyGems
  • High 7.5
    CVE-2017-0901 Public exploit EPSS 29%

    RubyGems may allow a maliciously crafted gem to overwrite files

    RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.

    HackerOne RubyGems ruby2.3 ruby Debian Ubuntu Alpine RubyGems
  • High 7.5
    CVE-2017-14033

    Ruby OpenSSL DoS Vulnerability

    The decode method in the OpenSSL::ASN1 module in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows attackers to cause a denial of service (interpreter crash) via a crafted string.

    ruby2.3 ruby ruby1.9.1 ruby2.2 Ubuntu Alpine RubyGems
  • Unscored —
    CVE-2017-0898

    Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) …

    HackerOne Ruby ruby2.3 ruby Ubuntu Alpine
  • Unscored —
    CVE-2017-14064

    Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate cal…

    ruby2.3 ruby ruby2.0 ruby1.9.1 Ubuntu Alpine

References

  • report
    https://ubuntu.com/security/CVE-2017-0898
  • report
    https://ubuntu.com/security/CVE-2017-0899
  • report
    https://ubuntu.com/security/CVE-2017-0900
  • report
    https://ubuntu.com/security/CVE-2017-0901
  • report
    https://ubuntu.com/security/CVE-2017-10784
  • report
    https://ubuntu.com/security/CVE-2017-14033
  • report
    https://ubuntu.com/security/CVE-2017-14064