bugGNU GRUB - Bugs: bug #42635, minilzo: Embedded LZO...


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bug #42635: minilzo: Embedded LZO vulnerability (CVE-2014-4607)

Submitted by:  Kristian Fiskerstrand <kristianf>
Submitted on:  Fri 27 Jun 2014 04:06:24 PM UTC  
Category: SecuritySeverity: Major
Priority: 5 - NormalItem Group: None
Status: NonePrivacy: Public
Assigned to: NoneOriginator Name: 
Open/Closed: OpenRelease: 
Release: Git masterReproducibility: None
Planned Release: 2.02

Fri 27 Jun 2014 04:48:35 PM UTC, comment #1:

May be a problem when using btrfs with lzo compression. But it's unlikely. If attacker can write to files used by GRUB, you have a bigger problems.
In cases when signatures used (if disk replacement is a possible attack scenario), the signatures are checked before the decompression, so not a problem either.
Nevertheless, I'll correct the mistake, thank you for forwarding this.

Vladimir Serbinenko <phcoder>
Project Administrator
Fri 27 Jun 2014 04:06:24 PM UTC, original submission:


A security issue was raised[0] regarding implementation of LZO which is fixed in Oberhumer's LZO version 2.07 and allocated CVE-2014-4607. Further it is suggested that grub might be affected to this vulnerability by embedding a version of the affected code (minilzo)[1]. It would be appreciated to get a comment on the applicability and a possible fix for this issue.

[0] http://seclists.org/oss-sec/2014/q2/665
[1] http://seclists.org/oss-sec/2014/q2/676

Kristian Fiskerstrand <kristianf>


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  • -unavailable- added by phcoder (Posted a comment)
  • -unavailable- added by kristianf (Submitted the item)

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    Follows 1 latest change.

    Date Changed By Updated Field Previous Value => Replaced By
    Wed 02 Mar 2016 10:41:38 AM UTCphcoderPlanned ReleaseNone=>2.02

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