Bug 515304 – dev-python/pytables: LZO Denial of Service and Arbitrary Code Execution through embedded code

• Status: RESOLVED FIXED
• Product: Gentoo Security

[Description Yury German 2014-06-27 02:44:00 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

[Comment 1 Ian Delaney (RETIRED) 2014-07-01 14:57:08 UTC]

"It is suspected that this package is vulnerable to a security vulnerability in LZO."

From http://seclists.org/oss-sec/2014/q2/676

"Still, I find the amount of embedded minilzo libs (for example)
worrying."

"- pytables [24] embeds lz4"

pytables has "dev-libs/lzo:2="
It embeds, or bundles, lz4-r113 & zlib-1.2.8, not lzo or minilzo.
The suspicion this is a suspect package appears unjustified in my perusal.

[Comment 2 Kristian Fiskerstrand (RETIRED) 2014-07-01 15:11:12 UTC]

(In reply to Ian Delaney from comment #1)
> 
> "- pytables [24] embeds lz4"
> 
> pytables has "dev-libs/lzo:2="
> It embeds, or bundles, lz4-r113 & zlib-1.2.8, not lzo or minilzo.
> The suspicion this is a suspect package appears unjustified in my perusal.

Please see http://seclists.org/oss-sec/2014/q2/670 regarding lz4 core vulnerability.

[Comment 3 Ian Delaney (RETIRED) 2014-07-01 15:20:16 UTC]

(In reply to Kristian Fiskerstrand from comment #2)
> (In reply to Ian Delaney from comment #1)
> > 
> > "- pytables [24] embeds lz4"
> > 
> > pytables has "dev-libs/lzo:2="
> > It embeds, or bundles, lz4-r113 & zlib-1.2.8, not lzo or minilzo.
> > The suspicion this is a suspect package appears unjustified in my perusal.
> 
> Please see http://seclists.org/oss-sec/2014/q2/670 regarding lz4 core
> vulnerability.

Vulnerability Description
-------------------------
An integer overflow can occur when processing any variant of a "literal run"
in the affected function.

Vulnerability Resolution
------------------------
Pending.

[Comment 4 Justin Lecher (RETIRED) 2015-05-27 17:25:09 UTC]

All present version unbundle the included lz4 code. So our packages aren't vulnerable.

[Comment 5 Yury German 2015-05-28 18:55:46 UTC]

Maintainer(s), Thank you for your work.

GLSA Vote: No

[Comment 6 Tobias Heinlein (RETIRED) 2015-06-30 22:33:07 UTC]

NO too, closing.