In ImageMagick before 6.9.7-10, there is a crash (rather than a "width or height exceeds limit" error report) if the image dimensions are too large, as demonstrated by use of the mpc coder.

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5335-1 advisory.

  - In ImageMagick before 6.9.7-10, there is a crash (rather than a width or height exceeds limit error     report) if the image dimensions are too large, as demonstrated by use of the mpc coder. (CVE-2017-13144)

  - Stack-based buffer overflow and unconditional jump in ReadXPMImage in coders/xpm.c in ImageMagick     7.0.10-7. (CVE-2020-19667)

  - In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and     memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is     called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply a specially     crafted image could affect availability with a low impact to data integrity. This flaw affects ImageMagick     versions prior to 6.9.10-68 and 7.0.8-68. (CVE-2020-25664)

  - The PALM image coder at coders/palm.c makes an improper call to AcquireQuantumMemory() in routine     WritePALMImage() because it needs to be offset by 256. This can cause a out-of-bounds read later on in the     routine. The patch adds 256 to bytes_per_row in the call to AcquireQuantumMemory(). This could cause     impact to reliability. This flaw affects ImageMagick versions prior to 7.0.8-68. (CVE-2020-25665)

  - WriteOnePNGImage() from coders/png.c (the PNG coder) has a for loop with an improper exit condition that     can allow an out-of-bounds READ via heap-buffer-overflow. This occurs because it is possible for the     colormap to have less than 256 valid values but the loop condition will loop 256 times, attempting to pass     invalid colormap data to the event logger. The patch replaces the hardcoded 256 value with a call to     MagickMin() to ensure the proper value is used. This could impact application availability when a     specially crafted input file is processed by ImageMagick. This flaw affects ImageMagick versions prior to     7.0.8-68. (CVE-2020-25674)

  - In CatromWeights(), MeshInterpolate(), InterpolatePixelChannel(), InterpolatePixelChannels(), and     InterpolatePixelInfo(), which are all functions in /MagickCore/pixel.c, there were multiple unconstrained     pixel offset calculations which were being used with the floor() function. These calculations produced     undefined behavior in the form of out-of-range and integer overflows, as identified by     UndefinedBehaviorSanitizer. These instances of undefined behavior could be triggered by an attacker who is     able to supply a crafted input file to be processed by ImageMagick. These issues could impact application     availability or potentially cause other problems related to undefined behavior. This flaw affects     ImageMagick versions prior to 7.0.9-0. (CVE-2020-25676)

  - A flaw was found in ImageMagick in MagickCore/colorspace-private.h and MagickCore/quantum.h. An attacker     who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form     of values outside the range of type `unsigned char` and math division by zero. This would most likely lead     to an impact to application availability, but could potentially cause other problems related to undefined     behavior. This flaw affects ImageMagick versions prior to 7.0.8-68. (CVE-2020-27750)

  - There are several memory leaks in the MIFF coder in /coders/miff.c due to improper image depth values,     which can be triggered by a specially crafted input file. These leaks could potentially lead to an impact     to application availability or cause a denial of service. It was originally reported that the issues were     in `AcquireMagickMemory()` because that is where LeakSanitizer detected the leaks, but the patch resolves     issues in the MIFF coder, which incorrectly handles data being passed to `AcquireMagickMemory()`. This     flaw affects ImageMagick versions prior to 7.0.9-0. (CVE-2020-27753)

  - In `GammaImage()` of /MagickCore/enhance.c, depending on the `gamma` value, it's possible to trigger a     divide-by-zero condition when a crafted input file is processed by ImageMagick. This could lead to an     impact to application availability. The patch uses the `PerceptibleReciprocal()` to prevent the divide-by-     zero from occurring. This flaw affects ImageMagick versions prior to ImageMagick 7.0.8-68.
    (CVE-2020-27760)

  - A flaw was found in ImageMagick in coders/hdr.c. An attacker who submits a crafted file that is processed     by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned     char`. This would most likely lead to an impact to application availability, but could potentially cause     other problems related to undefined behavior. This flaw affects ImageMagick versions prior to ImageMagick     7.0.8-68. (CVE-2020-27762)

  - A flaw was found in ImageMagick in MagickCore/statistic.c. An attacker who submits a crafted file that is     processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type     `unsigned long`. This would most likely lead to an impact to application availability, but could     potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions     prior to 7.0.8-69. (CVE-2020-27766)

  - Due to a missing check for 0 value of `replace_extent`, it is possible for offset `p` to overflow in     SubstituteString(), causing potential impact to application availability. This could be triggered by a     crafted input file that is processed by ImageMagick. This flaw affects ImageMagick versions prior to     7.0.8-68. (CVE-2020-27770)

  - A divide-by-zero flaw was found in ImageMagick 6.9.11-57 and 7.0.10-57 in gem.c. This flaw allows an     attacker who submits a crafted file that is processed by ImageMagick to trigger undefined behavior through     a division by zero. The highest threat from this vulnerability is to system availability. (CVE-2021-20176)

  - A flaw was found in ImageMagick in coders/jp2.c. An attacker who submits a crafted file that is processed     by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat     from this vulnerability is to system availability. (CVE-2021-20241)

  - A flaw was found in ImageMagick in MagickCore/resize.c. An attacker who submits a crafted file that is     processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The     highest threat from this vulnerability is to system availability. (CVE-2021-20243)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It was discovered that ImageMagick incorrectly handled certain malformed image files. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or possibly execute code with the privileges of the user invoking the program.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update fixes several vulnerabilities in imagemagick: Various memory handling problems and cases of missing or incomplete input sanitising may result in denial of service, memory disclosure or the execution of arbitrary code if malformed image files are processed.

The remote host is affected by the vulnerability described in GLSA-201711-07 (ImageMagick: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in ImageMagick. Please       review the referenced CVE identifiers for details.
  Impact :

    Remote attackers, by enticing a user to process a specially crafted       file, could obtain sensitive information, cause a Denial of Service       condition, or have other unspecified impacts.
  Workaround :

    There is no known workaround at this time.

This updates fixes numerous vulnerabilities in imagemagick: Various memory handling problems and cases of missing or incomplete input sanitising may result in denial of service, memory disclosure or the execution of arbitrary code if malformed DPX, RLE, CIN, DIB, EPT, MAT, VST, PNG, JNG, MNG, DVJU, JPEG, TXT, PES, MPC, UIL, PS, PALM, CIP, TIFF, ICON, MAGICK, DCM, MSL, WMF, MIFF, PCX, SUN, PSD, MVG, PWP, PICT, PDB, SFW, or XCF files are processed.

For Debian 7 'Wheezy', these problems have been fixed in version 6.7.7.10-5+deb7u16.

We recommend that you upgrade your imagemagick packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
159107	Ubuntu 16.04 ESM : ImageMagick vulnerabilities (USN-5335-1)	Nessus	Ubuntu Local Security Checks	high
135519	EulerOS 2.0 SP3 : ImageMagick (EulerOS-SA-2020-1390)	Nessus	Huawei Local Security Checks	critical
131846	EulerOS 2.0 SP2 : ImageMagick (EulerOS-SA-2019-2354)	Nessus	Huawei Local Security Checks	critical
110516	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : ImageMagick vulnerabilities (USN-3681-1)	Nessus	Ubuntu Local Security Checks	critical
104684	Debian DSA-4040-1 : imagemagick - security update	Nessus	Debian Local Security Checks	critical
104515	GLSA-201711-07 : ImageMagick: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
104403	Debian DSA-4019-1 : imagemagick - security update	Nessus	Debian Local Security Checks	critical
102889	Debian DLA-1081-1 : imagemagick security update	Nessus	Debian Local Security Checks	critical

Detections

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CVE-2017-13144

medium

Tenable Plugins

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