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CVE-2018-20452 (GCVE-0-2018-20452)

Vulnerability from cvelistv5 – Published: 2018-12-25 17:00 – Updated: 2024-08-05 11:58
VLAI
Summary
The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.
Severity
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
URL Tags
https://github.com/evanmiller/libxls/issues/35 x_refsource_MISC
https://security.gentoo.org/glsa/202003-64 vendor-advisoryx_refsource_GENTOO
Date Public
2018-12-25 00:00
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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