SB2018032615 - Red Hat Software Collections update for rh-ruby22-ruby

Description

This security bulletin contains information about 13 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2009-5147)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

DL::dlopen in Ruby 1.8, 1.9.0, 1.9.2, 1.9.3, 2.0.0 before patchlevel 648, and 2.1 before 2.1.8 opens libraries with tainted names.

2) Input validation error (CVE-ID: CVE-2015-7551)

The vulnerability allows context-dependent attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can execute arbitrary code or cause a denial of service (application crash) via a crafted string, related to the DL module and the libffi library.

3) Improper input validation (CVE-ID: CVE-2017-0898)

The vulnerability allows a remote attacker to cause DoS condition or obtain potentially sensitive information on the target system.

The weakness exists due to buffer underrun in the Kernel.sprintf() method. A remote attacker can provide a specially crafted format string value to cause the target interpreter to crash or potentially access data from the heap.

Successful exploitation of the vulnerability results in information disclosure or denial of service.

4) Security restrictions bypass (CVE-ID: CVE-2017-0899)

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to unknown error. A remote attacker can escape ANSI.

5) Denial of service (CVE-ID: CVE-2017-0900)

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to insufficient validation of user-supplied input. A local attacker can supply a specially crafted 'query' command and cause the service to crash.

Successful exploitation of the vulnerability results in denial of service.

6) Improper input validation (CVE-ID: CVE-2017-0901)

The vulnerability allows a remote attacker to overwrite arbitrary files on the target system.

The weakness exists due to insufficient validation of user-supplied input. A remote attacker can trick the victim into installing a specially crafted RubyGem and overwrite arbitrary files.

7) Session hijacking (CVE-ID: CVE-2017-0902)

The vulnerability allows a remote attacker to hijack the target user's session.

The weakness exists due to improper access control. A remote attacker can hijack DNS sessions.

8) Deserialization of untrusted data (CVE-ID: CVE-2017-0903)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to YAML deserialization of gem specifications. A remote attacker can inject an instance of specially crafted serialized objects, gain elevated privileges and execute arbitrary Ruby code on RubyGems.org.

Successful exploitation of the vulnerability may result in system compromise.

9) Information disclosure (CVE-ID: CVE-2017-10784)

The vulnerability allows a remote attacker to cause DoS condition or obtain potentially sensitive information on the target system.

The weakness exists due to escape sequence injection vulnerability in the Basic authentication of WEBrick. A remote attacker can supply a specially crafted user name value to the WEBrick Basic authentication function, inject escape sequence into the log file and view log contents.

Successful exploitation of the vulnerability results in information disclosure or denial of service.

10) Improper input validation (CVE-ID: CVE-2017-14033)

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to buffer underrun. A remote attacker can provide a specially crafted string to the OpenSSL::ASN1 decode function to cause the target interpreter to crash.

Successful exploitation of the vulnerability results in denial of service.

11) Information disclosure (CVE-ID: CVE-2017-14064)

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to an issue with using strdup in ext/json/ext/generator/generator.c during a JSON generate call. A remote attacker can send a specially crafted request, stop strdup after encountering a '' byte, returning a pointer to a string of length zero, which is not the length stored in space_len and expose arbitrary memory.

Successful exploitation of the vulnerability results in information disclosure.

12) Command injection (CVE-ID: CVE-2017-17405)

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The weakness exists due to flaws in the Net::FTP. A remote attacker can inject and execute arbitrary commands with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

13) Command injection (CVE-ID: CVE-2017-17790)

The vulnerability allows a remote attacker to execute arbitrary command on the target system.

The weakness exists in the lazy_initialize function due to command injection. A remote attacker can send a specially crafted request, inject and execute arbitrary commands.

Remediation

Install update from vendor's website.

References

• https://access.redhat.com/errata/RHSA-2018:0583