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Gentoo: GLSA-201708-10 Normal: jbig2dec User-Assisted Code Exec

gentoo
Calendar Grey August 26, 2017
Dist Gentoo Esm H88
Enhance jbig2dec to mitigate medium-level vulnerabilities that could lead to user-triggered code execution or service interruptions.
Multiple integer overflow flaws have been discovered in jbig2dec, possibly resulting in execution of arbitrary code or Denial of Service.

Summary

Integer overflow errors have been discovered in the jbig2_decode_symbol_dict, jbig2_build_huffman_table, and jbig2_image_compose functions of jbig2dec.

Topics%20covered

Topics Covered

security advisory gentoo arbitrary code Denial of Service user-assisted execution

Resolution

All jbig2dec users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/jbig2dec-0.13-r4"

References

[ 1 ] CVE-2017-7885 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7885 [ 2 ] CVE-2017-7975 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7975 [ 3 ] CVE-2017-7976 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7976

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201708-10
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: jbig2dec: User-assisted execution of arbitrary code
Date: August 26, 2017
Bugs: #616464
ID: 201708-10

Topics%20covered

Topics Covered

security advisory gentoo arbitrary code Denial of Service user-assisted execution

Synopsis

Multiple integer overflow flaws have been discovered in jbig2dec, possibly resulting in execution of arbitrary code or Denial of Service.

Background

jbig2dec is a decoder implementation of the JBIG2 image compression format.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-libs/jbig2dec < 0.13-r4 >= 0.13-r4

Impact

===== A remote attacker, by enticing a user to open a specially crafted JBIG2 file using an application linked against jbig2dec, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.