ALAS-2014-365


Amazon Linux AMI Security Advisory: ALAS-2014-365
Advisory Release Date: 2014-09-19 10:27 Pacific
Severity: Medium

Issue Overview:

Use-after-free vulnerability in the t2p_readwrite_pdf_image function in tools/tiff2pdf.c in libtiff 4.0.3 allows remote attackers to cause a denial of service (crash) or possible execute arbitrary code via a crafted TIFF image.

The LZW decompressor in the gif2tiff tool in libtiff 4.0.3 and earlier allows context-dependent attackers to cause a denial of service (out-of-bounds write and crash) or possibly execute arbitrary code via a crafted GIF image.

Heap-based buffer overflow in the readgifimage function in the gif2tiff tool in libtiff 4.0.3 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted height and width values in a GIF image.

Multiple buffer overflows in libtiff before 4.0.3 allow remote attackers to cause a denial of service (out-of-bounds write) via a crafted (1) extension block in a GIF image or (2) GIF raster image to tools/gif2tiff.c or (3) a long filename for a TIFF image to tools/rgb2ycbcr.c. NOTE: vectors 1 and 3 are disputed by Red Hat, which states that the input cannot exceed the allocated buffer size.


Affected Packages:

libtiff


Issue Correction:
Run yum update libtiff to update your system.

New Packages:
i686:
    libtiff-devel-4.0.3-15.19.amzn1.i686
    libtiff-4.0.3-15.19.amzn1.i686
    libtiff-static-4.0.3-15.19.amzn1.i686
    libtiff-debuginfo-4.0.3-15.19.amzn1.i686

src:
    libtiff-4.0.3-15.19.amzn1.src

x86_64:
    libtiff-devel-4.0.3-15.19.amzn1.x86_64
    libtiff-static-4.0.3-15.19.amzn1.x86_64
    libtiff-4.0.3-15.19.amzn1.x86_64
    libtiff-debuginfo-4.0.3-15.19.amzn1.x86_64