Debian LTS Advisory ([SECURITY] [DLA 942-1] jbig2dec security update)

Published: 2018-01-24 23:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
jbig2dec on Debian Linux

Recommendations:
For Debian 7 'Wheezy', these problems have been fixed in version 0.13-4~deb7u2. We recommend that you upgrade your jbig2dec Linux Distribution Packages.

Summary:
CVE-2017-7885 Artifex jbig2dec 0.13 has a heap-based buffer over-read leading to denial of service (application crash) or disclosure of sensitive information from process memory, because of an integer overflow in the jbig2_decode_symbol_dict function in jbig2_symbol_dict.c in libjbig2dec.a during operation on a crafted .jb2 file. CVE-2017-7975 Artifex jbig2dec 0.13, as used in Ghostscript, allows out-of-bounds writes because of an integer overflow in the jbig2_build_huffman_table function in jbig2_huffman.c during operations on a crafted JBIG2 file, leading to a denial of service (application crash) or possibly execution of arbitrary code. CVE-2017-7976 Artifex jbig2dec 0.13 allows out-of-bounds writes and reads because of an integer overflow in the jbig2_image_compose function in jbig2_image.c during operations on a crafted .jb2 file, leading to a denial of service (application crash) or disclosure of sensitive information from process memory.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-7885
https://nvd.nist.gov/vuln/detail/CVE-2017-7975
https://nvd.nist.gov/vuln/detail/CVE-2017-7976

References:

https://lists.debian.org/debian-lts-announce/2017/05/msg00013.html

Severity
Medium
CVSS Score
6.8
Published
2018-01-24
Modified
2019-03-18
Category
Debian Local Security Checks

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