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Vulnerability of librsvg2: out-of-bounds memory reading via rsvg_pattern_fix_fallback

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via rsvg_pattern_fix_fallback() of librsvg2, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable systems: Solaris, SUSE Linux Enterprise Desktop, SLES.
Severity of this threat: 2/4.
Creation date: 18/04/2018.
Références of this weakness: bulletinjan2018, CVE-2016-6163, SUSE-SU-2020:14323-1, VIGILANCE-VUL-25904.

Description of the vulnerability 

An attacker can force a read at an invalid address via rsvg_pattern_fix_fallback() of librsvg2, in order to trigger a denial of service, or to obtain sensitive information.
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This computer threat impacts software or systems such as Solaris, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this computer vulnerability alert is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this cybersecurity weakness.

Solutions for this threat 

Oracle Solaris: patch for third party software of January 2018 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

SUSE LE 11 SP4: new librsvg packages.
New packages are available:
  SUSE LE 11 SP4: librsvg 2.26.0-2.6.8.3
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