Heap-based buffer overflow in the ReadPCXImage function in the PCX coder in coders/pcx.c in (1) ImageMagick 6.2.4-5 and 6.2.8-0 and (2) GraphicsMagick (aka gm) 1.1.7 allows user-assisted remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted .pcx file that triggers incorrect memory allocation for the scanline array, leading to memory corruption.

The remote host is affected by the vulnerability described in GLSA-201311-10 (GraphicsMagick: Multiple vulnerabilities)

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

    A remote attacker could entice a user to open a specially crafted image       file, potentially resulting in arbitrary code execution or a Denial of       Service condition.
  Workaround :

    There is no known workaround at this time.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2008-0145 advisory.

    - Add patch for CVE-2007-1797 (#235071)
    - Add patch for CVE-2007-4988 (#310081)
    - Add patch for CVE-2007-4985 (#310091)
    - Add patch for CVE-2007-4986 (#310121)
    - Add patch for CVE-2008-1096 (#286411)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

Several heap-based buffer overflow flaws were found in ImageMagick. If a victim opened a specially crafted DCM or XWD file, an attacker could potentially execute arbitrary code on the victim's machine.
(CVE-2007-1797)

Several denial of service flaws were found in ImageMagick's parsing of XCF and DCM files. Attempting to process a specially crafted input file in these formats could cause ImageMagick to enter an infinite loop. (CVE-2007-4985)

Several integer overflow flaws were found in ImageMagick. If a victim opened a specially crafted DCM, DIB, XBM, XCF or XWD file, an attacker could potentially execute arbitrary code with the privileges of the user running ImageMagick. (CVE-2007-4986)

An integer overflow flaw was found in ImageMagick's DIB parsing code.
If a victim opened a specially crafted DIB file, an attacker could potentially execute arbitrary code with the privileges of the user running ImageMagick. (CVE-2007-4988)

A heap-based buffer overflow flaw was found in the way ImageMagick parsed XCF files. If a specially crafted XCF image was opened, ImageMagick could be made to overwrite heap memory beyond the bounds of its allocated memory. This could, potentially, allow an attacker to execute arbitrary code on the machine running ImageMagick.
(CVE-2008-1096)

A heap-based buffer overflow flaw was found in ImageMagick's processing of certain malformed PCX images. If a victim opened a specially crafted PCX file, an attacker could possibly execute arbitrary code on the victim's machine. (CVE-2008-1097)

Several vulnerabilities have been discovered in the imagemagick image manipulation programs which can lead to the execution of arbitrary code, exposure of sensitive information or cause DoS. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2007-1667     Multiple integer overflows in XInitImage function in     xwd.c for ImageMagick, allow user-assisted remote     attackers to cause a denial of service (crash) or obtain     sensitive information via crafted images with large or     negative values that trigger a buffer overflow. It only     affects the oldstable distribution (etch).

  - CVE-2007-1797     Multiple integer overflows allow remote attackers to     execute arbitrary code via a crafted DCM image, or the     colors or comments field in a crafted XWD image. It only     affects the oldstable distribution (etch).

  - CVE-2007-4985     A crafted image file can trigger an infinite loop in the     ReadDCMImage function or in the ReadXCFImage function.
    It only affects the oldstable distribution (etch).

  - CVE-2007-4986     Multiple integer overflows allow context-dependent     attackers to execute arbitrary code via a crafted .dcm,     .dib, .xbm, .xcf, or .xwd image file, which triggers a     heap-based buffer overflow. It only affects the     oldstable distribution (etch).

  - CVE-2007-4987     Off-by-one error allows context-dependent attackers to     execute arbitrary code via a crafted image file, which     triggers the writing of a '\0' character to an     out-of-bounds address. It affects only the oldstable     distribution (etch).

  - CVE-2007-4988     A sign extension error allows context-dependent     attackers to execute arbitrary code via a crafted width     value in an image file, which triggers an integer     overflow and a heap-based buffer overflow. It affects     only the oldstable distribution (etch).

  - CVE-2008-1096     The load_tile function in the XCF coder allows     user-assisted remote attackers to cause a denial of     service or possibly execute arbitrary code via a crafted     .xcf file that triggers an out-of-bounds heap write. It     affects only to oldstable (etch).

  - CVE-2008-1097     Heap-based buffer overflow in the PCX coder allows     user-assisted remote attackers to cause a denial of     service or possibly execute arbitrary code via a crafted     .pcx file that triggers incorrect memory allocation for     the scanline array, leading to memory corruption. It     affects only to oldstable (etch).

  - CVE-2009-1882     Integer overflow allows remote attackers to cause a     denial of service (crash) and possibly execute arbitrary     code via a crafted TIFF file, which triggers a buffer     overflow.

A heap-based buffer overflow vulnerability was found in how ImageMagick parsed XCF files. If ImageMagick opened a specially crafted XCF file, it could be made to overwrite heap memory beyond the bounds of its allocated memory, potentially allowing an attacker to execute arbitrary code on the system running ImageMagick (CVE-2008-1096).

Another heap-based buffer overflow vulnerability was found in how ImageMagick processed certain malformed PCX images. If ImageMagick opened a specially crafted PCX image file, an attacker could possibly execute arbitrary code on the system running ImageMagick (CVE-2008-1097).

The updated packages have been patched to correct these issues.

ImageMagick and GraphicsMagick are affected by two security problems :

  - Buffer overflow in the handling of XCF files     CVE-2008-1097: Heap buffer overflow in the handling of     PCX files. (CVE-2008-1096)

ImageMagick is affected by two security problems :

CVE-2008-1096: Buffer overflow in the handling of XCF files CVE-2008-1097: Heap buffer overflow in the handling of PCX files

GraphicsMagick is affected by two security problems :

CVE-2008-1096: Buffer overflow in the handling of XCF files CVE-2008-1097: Heap buffer overflow in the handling of PCX files

Updated ImageMagick packages that correct several security issues are now available for Red Hat Enterprise Linux versions 3, 4, and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

ImageMagick is an image display and manipulation tool for the X Window System that can read and write multiple image formats.

Several heap-based buffer overflow flaws were found in ImageMagick. If a victim opened a specially crafted DCM or XWD file, an attacker could potentially execute arbitrary code on the victim's machine.
(CVE-2007-1797)

Several denial of service flaws were found in ImageMagick's parsing of XCF and DCM files. Attempting to process a specially crafted input file in these formats could cause ImageMagick to enter an infinite loop. (CVE-2007-4985)

Several integer overflow flaws were found in ImageMagick. If a victim opened a specially crafted DCM, DIB, XBM, XCF or XWD file, an attacker could potentially execute arbitrary code with the privileges of the user running ImageMagick. (CVE-2007-4986)

An integer overflow flaw was found in ImageMagick's DIB parsing code.
If a victim opened a specially crafted DIB file, an attacker could potentially execute arbitrary code with the privileges of the user running ImageMagick. (CVE-2007-4988)

A heap-based buffer overflow flaw was found in the way ImageMagick parsed XCF files. If a specially crafted XCF image was opened, ImageMagick could be made to overwrite heap memory beyond the bounds of its allocated memory. This could, potentially, allow an attacker to execute arbitrary code on the machine running ImageMagick.
(CVE-2008-1096)

A heap-based buffer overflow flaw was found in ImageMagick's processing of certain malformed PCX images. If a victim opened a specially crafted PCX file, an attacker could possibly execute arbitrary code on the victim's machine. (CVE-2008-1097)

All users of ImageMagick should upgrade to these updated packages, which contain backported patches to correct these issues.

Updated ImageMagick packages that correct several security issues are now available for Red Hat Enterprise Linux version 2.1.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

ImageMagick is an image display and manipulation tool for the X Window System that can read and write multiple image formats.

Several heap-based buffer overflow flaws were found in ImageMagick. If a victim opened a specially crafted DCM or XWD file, an attacker could potentially execute arbitrary code on the victim's machine.
(CVE-2007-1797)

Several denial of service flaws were found in ImageMagick's parsing of XCF and DCM files. Attempting to process a specially crafted input file in these formats could cause ImageMagick to enter an infinite loop. (CVE-2007-4985)

Several integer overflow flaws were found in ImageMagick. If a victim opened a specially crafted DCM, DIB, XBM, XCF or XWD file, an attacker could potentially execute arbitrary code with the privileges of the user running ImageMagick. (CVE-2007-4986)

A heap-based buffer overflow flaw was found in ImageMagick's processing of certain malformed PCX images. If a victim opened a specially crafted PCX file, an attacker could possibly execute arbitrary code with the privileges of the user running ImageMagick..
(CVE-2008-1097)

All users of ImageMagick should upgrade to these updated packages, which contain backported patches to correct these issues.

ID	Name	Product	Family	Severity
70959	GLSA-201311-10 : GraphicsMagick: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
67656	Oracle Linux 5 : ImageMagick (ELSA-2008-0145)	Nessus	Oracle Linux Local Security Checks	high
60382	Scientific Linux Security Update : ImageMagick on SL3.x, SL4.x, SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
44723	Debian DSA-1858-1 : imagemagick - multiple vulnerabilities	Nessus	Debian Local Security Checks	high
37739	Mandriva Linux Security Advisory : ImageMagick (MDVSA-2008:099)	Nessus	Mandriva Local Security Checks	medium
33380	SuSE 10 Security Update : ImageMagick (ZYPP Patch Number 5278)	Nessus	SuSE Local Security Checks	medium
33379	openSUSE 10 Security Update : ImageMagick (ImageMagick-5277)	Nessus	SuSE Local Security Checks	medium
33378	openSUSE 10 Security Update : GraphicsMagick (GraphicsMagick-5276)	Nessus	SuSE Local Security Checks	medium
31995	CentOS 3 / 4 / 5 : ImageMagick (CESA-2008:0145)	Nessus	CentOS Local Security Checks	medium
31985	RHEL 2.1 : ImageMagick (RHSA-2008:0165)	Nessus	Red Hat Local Security Checks	medium
31984	RHEL 3 / 4 / 5 : ImageMagick (RHSA-2008:0145)	Nessus	Red Hat Local Security Checks	medium

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