Bug 515258 – <app-emulation/xen{,-tools,-pvgrub}-4.5.0: LZO Denial of Service and Arbitrary Code Execution through embedded code

• Product: Gentoo Security
• Status: RESOLVED FIXED

[Description Yury German 2014-06-27 00:51:35 UTC]

It is suspected that this package is vulnerable to a security vulnerability in LZO. As such we ask maintainers with packages suspected to be vulnerable to verify if the package is (or have been) affected. 

Please see the information contained in the tracker bug 515246. "An integer overflow may occur when processing any variant of a "literal run" in the lzo1x_decompress_safe function. Each of these three locations is subject to an integer overflow when processing zero bytes.", additional information about the upstream vulnerability is available at http://seclists.org/oss-sec/2014/q2/665


Reproducible: Always

[Comment 1 Thomas Deutschmann (RETIRED) 2016-11-22 20:38:15 UTC]

Xen project uses kernel's lzo.c. Since release v4.5.0 it is carrying http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=504f70b624063bbb32d43cdfe6e8409eaac1fa8e which fixed the problem in kernel and since release v4.5.3 it contains the final improved fix http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=10a94ddbd2eb97365872cd14be93837c4613e09d

v4.5.0 hit Gentoo repository via https://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/app-emulation/xen-tools/xen-tools-4.5.0.ebuild?hideattic=0&view=log

Our current stable versions:

=app-emulation/xen-4.6.3-r3
=app-emulation/xen-tools-4.6.3-r2
=app-emulation/xen-pvgrub-4.6.3

...so nothing left for us todo.


@ Security: Please vote!

[Comment 2 Aaron Bauman (RETIRED) 2016-11-22 22:55:05 UTC]

GLSA Vote: No