Out-of-Bounds Affecting firefox package, versions <82.0-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.7% (81st percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-1019566
  • published20 Oct 2020
  • disclosed16 Oct 2020

Introduced: 16 Oct 2020

CVE-2020-15254  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 82.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that Vec::from_iter has allocated capacity that same as the number of iterator elements. Vec::from_iter does not actually guarantee that and may allocate extra memory. The destructor of the bounded channel reconstructs Vec from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when Vec::from_iter has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4.

CVSS Scores

version 3.1