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Bug #76615 Segmentation fault with php://temp handler
Submitted: 2018-07-12 06:11 UTC Modified: 2018-07-12 06:16 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: martin at katoni dot dk Assigned:
Status: Open Package: imagick (PECL)
PHP Version: 7.2.7 OS: Docker php:7.2.7-apache
Private report: No CVE-ID: None
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 [2018-07-12 06:11 UTC] martin at katoni dot dk 
Description:
------------
This bug only occurs for some image resources.

In the following example php fails with error "Segmentation fault":

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000559dbe907bcf in _php_stream_seek ()

Apperatently this is only caused by ImageMagick::writeImageFile(fopen('php://temp', 'w+'))

ImageMagick::writeImageFile(fopen('/tmp/image.jpg', 'w+')) and ImageMagick::writeImage('/tmp/image.jpg') works fine.

I've attached the failing TIFF image as a patch file.

Test script:
---------------
$imagick = new Imagick('/tmp/89538763640163');

$imagick->setInterlaceScheme(Imagick::INTERLACE_PLANE);
$imagick->stripImage();
$imagick->thumbnailImage(140, 200, true, true);

$handle = fopen('php://temp', 'w+');

$written = $imagick->writeImageFile($handle);

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 [2018-07-12 06:13 UTC] martin at katoni dot dk 
I couldn't attach the image as a patch, but it can be found and downloaded from here:
https://dizw242ufxqut.cloudfront.net/images/product/householdappliances/hushllsapparater/image430/peugeot_nancy_pepparkvarn_akryl-42311126-41387594-frntl.jpg

File size: 358086 bytes
 [2018-07-12 06:16 UTC] martin at katoni dot dk 
Imagick version 3.4.3

Imagick compiled with ImageMagick version => ImageMagick 6.9.7-4 Q16 x86_64 20170114 http://www.imagemagick.org
Imagick using ImageMagick library version => ImageMagick 6.9.7-4 Q16 x86_64 20170114 http://www.imagemagick.org

ImageMagick release date => 20170114
ImageMagick number of supported formats:  => 236
ImageMagick supported formats => 3FR, AAI, AI, ART, ARW, AVI, AVS, BGR, BGRA, BGRO, BIE, BMP, BMP2, BMP3, BRF, CAL, CALS, CANVAS, CAPTION, CIN, CIP, CLIP, CMYK, CMYKA, CR2, CRW, CUR, CUT, DATA, DCM, DCR, DCX, DDS, DFONT, DJVU, DNG, DOT, DPX, DXT1, DXT5, EPDF, EPI, EPS, EPS2, EPS3, EPSF, EPSI, EPT, EPT2, EPT3, ERF, EXR, FAX, FILE, FITS, FRACTAL, FTP, FTS, G3, G4, GIF, GIF87, GRADIENT, GRAY, GROUP4, GV, H, HALD, HDR, HISTOGRAM, HRZ, HTM, HTML, HTTP, HTTPS, ICB, ICO, ICON, IIQ, INFO, INLINE, IPL, ISOBRL, ISOBRL6, J2C, J2K, JBG, JBIG, JNG, JNX, JP2, JPC, JPE, JPEG, JPG, JPM, JPS, JPT, JSON, K25, KDC, LABEL, M2V, M4V, MAC, MAGICK, MAP, MASK, MAT, MATTE, MEF, MIFF, MKV, MNG, MONO, MOV, MP4, MPC, MPEG, MPG, MRW, MSL, MSVG, MTV, MVG, NEF, NRW, NULL, ORF, OTB, OTF, PAL, PALM, PAM, PANGO, PATTERN, PBM, PCD, PCDS, PCL, PCT, PCX, PDB, PDF, PDFA, PEF, PES, PFA, PFB, PFM, PGM, PICON, PICT, PIX, PJPEG, PLASMA, PNG, PNG00, PNG24, PNG32, PNG48, PNG64, PNG8, PNM, PPM, PREVIEW, PS, PS2, PS3, PSB, PSD, PTIF, PWP, RADIAL-GRADIENT, RAF, RAS, RAW, RGB, RGBA, RGBO, RGF, RLA, RLE, RMF, RW2, SCR, SCT, SFW, SGI, SHTML, SIX, SIXEL, SPARSE-COLOR, SR2, SRF, STEGANO, SUN, SVG, SVGZ, TEXT, TGA, THUMBNAIL, TIFF, TIFF64, TILE, TIM, TTC, TTF, TXT, UBRL, UBRL6, UIL, UYVY, VDA, VICAR, VID, VIFF, VIPS, VST, WBMP, WMF, WMV, WMZ, WPG, X, X3F, XBM, XC, XCF, XPM, XPS, XV, XWD, YCbCr, YCbCrA, YUV
 
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