CVE-2014-4975

Publication date 17 July 2014

Last updated 24 July 2024

Description

Off-by-one error in the encodes function in pack.c in Ruby 1.9.3 and earlier, and 2.x through 2.1.2, when using certain format string specifiers, allows context-dependent attackers to cause a denial of service (segmentation fault) via vectors that trigger a stack-based buffer overflow.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby1.8	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
	10.04 LTS lucid	Ignored end of life
ruby1.9	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Ignored end of life
ruby1.9.1	15.10 wily	Not in release
	15.04 vivid	Ignored end of life
	14.10 utopic	Ignored end of life
	14.04 LTS trusty	Fixed 1.9.3.484-2ubuntu1.1
	12.04 LTS precise	Fixed 1.9.3.0-1ubuntu2.9
	10.04 LTS lucid	Ignored end of life
ruby2.0	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Fixed 2.0.0.484+really457-3ubuntu1.1
	14.04 LTS trusty	Fixed 2.0.0.484-1ubuntu2.1
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
ruby2.1	15.10 wily	Fixed 2.1.2-2ubuntu2
	15.04 vivid	Fixed 2.1.2-2ubuntu2
	14.10 utopic	Fixed 2.1.2-2ubuntu1.1
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release

Notes

mdeslaur

not likely to be exposed, and stack protector limits to DoS

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ruby2.1	Upstream: http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=46778

References

Related Ubuntu Security Notices (USN)

USN-2397-1
Ruby vulnerabilities
4 November 2014