CVE-2017-9727

The gx_ttfReader__Read function in base/gxttfb.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document.

The gx_ttfReader__Read function in base/gxttfb.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document.

The Ins_MIRP function in base/ttinterp.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document. (CVE-2017-9611)

The Ins_IP function in base/ttinterp.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via a crafted document. (CVE-2017-9612)

The Ins_MDRP function in base/ttinterp.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document. (CVE-2017-9726)

The gx_ttfReader__Read function in base/gxttfb.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document. (CVE-2017-9727)

The Ins_JMPR function in base/ttinterp.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document. (CVE-2017-9739)

The gs_alloc_ref_array function in psi/ialloc.c in Artifex Ghostscript 9.21 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PostScript document. This is related to a lack of an integer overflow check in base/gsalloc.c. (CVE-2017-9835)

psi/ztoken.c in Artifex Ghostscript 9.21 mishandles references to the scanner state structure, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PostScript document, related to an out-of-bounds read in the igc_reloc_struct_ptr function in psi/igc.c. (CVE-2017-11714)

This update for ghostscript fixes several issues.

These security issues were fixed:

• CVE-2017-9835: The gs_alloc_ref_array function allowed remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PostScript document (bsc#1050879).
• CVE-2017-9216: Prevent NULL pointer dereference in the jbig2_huffman_get function in jbig2_huffman.c which allowed for DoS (bsc#1040643).
• CVE-2016-10317: The fill_threshhold_buffer function in base/gxht_thresh.c allowed remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PostScript document (bsc#1032230).
• CVE-2017-9612: The Ins_IP function in base/ttinterp.c allowed remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via a crafted document (bsc#1050891).
• CVE-2017-9726: The Ins_MDRP function in base/ttinterp.c allowed remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document (bsc#1050889).
• CVE-2017-9727: The gx_ttfReader__Read function in base/gxttfb.c allowed remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document (bsc#1050888).
• CVE-2017-9739: The Ins_JMPR function in base/ttinterp.c allowed remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document (bsc#1050887).
• CVE-2017-11714: psi/ztoken.c mishandled references to the scanner state structure, which allowed remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PostScript document, related to an out-of-bounds read in the igc_reloc_struct_ptr function in psi/igc.c (bsc#1051184).
• CVE-2016-10219: The intersect function in base/gxfill.c allowed remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted file (bsc#1032138).

This update for ghostscript-library fixes several issues.

These security issues were fixed:

• CVE-2017-7207: The mem_get_bits_rectangle function allowed remote attackers to cause a denial of service (NULL pointer dereference) via a crafted PostScript document (bsc#1030263).
• CVE-2016-9601: Prevent heap-buffer overflow by checking for an integer overflow in jbig2_image_new function (bsc#1018128).
• CVE-2017-9612: The Ins_IP function in base/ttinterp.c allowed remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via a crafted document (bsc#1050891)
• CVE-2017-9726: The Ins_MDRP function in base/ttinterp.c allowed remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document (bsc#1050889)
• CVE-2017-9727: The gx_ttfReader__Read function in base/gxttfb.c allowed remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document (bsc#1050888)
• CVE-2017-9739: The Ins_JMPR function in base/ttinterp.c allowed remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document (bsc#1050887)
• CVE-2017-11714: psi/ztoken.c mishandled references to the scanner state structure, which allowed remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PostScript document, related to an out-of-bounds read in the igc_reloc_struct_ptr function in psi/igc.c (bsc#1051184)
• CVE-2017-9835: The gs_alloc_ref_array function allowed remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PostScript document (bsc#1050879)
• CVE-2016-10219: The intersect function in base/gxfill.c allowed remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted file (bsc#1032138)
• CVE-2017-9216: Prevent NULL pointer dereference in the jbig2_huffman_get function in jbig2_huffman.c which allowed for DoS (bsc#1040643)

Kamil Frankowicz discovered that Ghostscript mishandles references. A remote attacker could use this to cause a denial of service. (CVE-2017-11714)

Kim Gwan Yeong discovered that Ghostscript could allow a heap-based buffer over-read and application crash. A remote attacker could use a crafted document to cause a denial of service. (CVE-2017-9611, CVE-2017-9726, CVE-2017-9727, CVE-2017-9739)

Kim Gwan Yeong discovered an use-after-free vulnerability in Ghostscript. A remote attacker could use a crafted file to cause a denial of service. (CVE-2017-9612)

Kim Gwan Yeong discovered a lack of integer overflow check in Ghostscript. A remote attacker could use crafted PostScript document to cause a denial of service. (CVE-2017-9835)