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Gentoo Linux Security Advisory GLSA 201708-10 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: jbig2dec: User-assisted execution of arbitrary code |
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Date: August 26, 2017 |
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Bugs: #616464 |
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ID: 201708-10 |
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Synopsis |
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======== |
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|
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Multiple integer overflow flaws have been discovered in jbig2dec, |
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possibly resulting in execution of arbitrary code or Denial of Service. |
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Background |
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========== |
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|
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jbig2dec is a decoder implementation of the JBIG2 image compression |
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format. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 media-libs/jbig2dec < 0.13-r4 >= 0.13-r4 |
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|
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Description |
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=========== |
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|
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Integer overflow errors have been discovered in the |
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jbig2_decode_symbol_dict, jbig2_build_huffman_table, and |
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jbig2_image_compose functions of jbig2dec. |
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|
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Impact |
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====== |
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|
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A remote attacker, by enticing a user to open a specially crafted JBIG2 |
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file using an application linked against jbig2dec, could possibly |
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execute arbitrary code with the privileges of the process or cause a |
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Denial of Service condition. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All jbig2dec users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/jbig2dec-0.13-r4" |
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References |
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========== |
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[ 1 ] CVE-2017-7885 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7885 |
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[ 2 ] CVE-2017-7975 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7975 |
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[ 3 ] CVE-2017-7976 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7976 |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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https://security.gentoo.org/glsa/201708-10 |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2017 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.5 |
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