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  • #9715

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Opened Nov 29, 2018 by Alicha CH@alichaReporter
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[3.9] tiff: Multiple vulnerabilities (CVE-2018-12900, CVE-2018-18557, CVE-2018-18661)

CVE-2018-12900: Heap-based buffer overflow in the cpSeparateBufToContigBuf function resulting in a denial of service

Heap-based buffer overflow in the cpSeparateBufToContigBuf function in tiffcp.c in LibTIFF 4.0.9 allows remote
attackers to cause a denial of service (crash) or possibly have unspecified other impact via a crafted TIFF file.

References:

http://bugzilla.maptools.org/show\_bug.cgi?id=2798
https://nvd.nist.gov/vuln/detail/CVE-2018-12900

CVE-2018-18557: Out-of-bounds write in tif_jbig.c

LibTIFF 4.0.9 (with JBIG enabled) decodes arbitrarily-sized JBIG into a buffer,
ignoring the buffer size, which leads to a tif_jbig.c JBIGDecode out-of-bounds write.

References:

https://bugs.chromium.org/p/project-zero/issues/detail?id=1697
https://nvd.nist.gov/vuln/detail/CVE-2018-18557

CVE-2018-18661: tiff2bw tool failed memory allocation leads to crash

An issue was discovered in LibTIFF 4.0.9. There is a NULL pointer dereference in the function
LZWDecode in the file tif_lzw.c.

References:

http://bugzilla.maptools.org/show\_bug.cgi?id=2819
https://nvd.nist.gov/vuln/detail/CVE-2018-18661

Patch:

https://gitlab.com/libtiff/libtiff/commit/99b10edde9a0fc28cc0e7b7757aa18ac4c8c225f

(from redmine: issue id 9715, created on 2018-11-29, closed on 2018-12-07)

  • Relations:
    • parent #9714 (closed)
  • Changesets:
    • Revision 0c504ed6 by Natanael Copa on 2018-11-30T11:58:02Z:
main/tiff: security upgrade to 4.0.10

CVE-2018-12900, CVE-2018-18557, CVE-2018-18661

fixes #9715
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information
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Reference: alpine/aports#9715