Bug 1583400 (CVE-2018-11490) - CVE-2018-11490 giflib: heap-based buffer overflow in DGifDecompressLine function in dgif_lib.c
Summary: CVE-2018-11490 giflib: heap-based buffer overflow in DGifDecompressLine funct...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-11490
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1583404 1583405
Blocks: 1583408
TreeView+ depends on / blocked
 
Reported: 2018-05-28 22:18 UTC by Laura Pardo
Modified: 2021-02-17 00:14 UTC (History)
16 users (show)

Fixed In Version:
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Last Closed: 2018-08-02 09:52:49 UTC
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Description Laura Pardo 2018-05-28 22:18:57 UTC 
A flaw was found in the DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain "Private->RunningCode - 2" array index is not checked. This will lead to a denial of service or possibly unspecified other impact.


References:
https://github.com/pts/sam2p/issues/38
Comment 1 Laura Pardo 2018-05-28 22:19:47 UTC 
Created giflib tracking bugs for this issue:

Affects: fedora-all [bug 1583404]
Comment 3 James Hebden 2018-06-05 05:36:07 UTC 
phantomjs used in RHOSP7-optools bundles version 4.0 of giflib, which does not contain the vulnerable DGifDecompressLine function.
Comment 4 Sandro Mani 2018-06-15 20:57:18 UTC 
Upstream ticket: https://sourceforge.net/p/giflib/bugs/113/
Comment 5 Stefan Cornelius 2018-08-02 09:53:02 UTC 
Statement:

This issue did not affect the versions of giflib as shipped with Red Hat Enterprise Linux 5, 6, an 7.
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