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Home CVE Database CVE-2020-14382

CVE-2020-14382

Description

A vulnerability was found in upstream release cryptsetup-2.2.0 where, there\'s a bug in LUKS2 format validation code, that is effectively invoked on every device/image presenting itself as LUKS2 container. The bug is in segments validation code in file \'lib/luks2/luks2_json_metadata.c\' in function hdr_validate_segments(struct crypt_device *cd, json_object *hdr_jobj) where the code does not check for possible overflow on memory allocation used for intervals array (see statement intervals = malloc(first_backup * sizeof(*intervals));). Due to the bug, library can be *tricked* to expect such allocation was successful but for far less memory then originally expected. Later it may read data FROM image crafted by an attacker and actually write such data BEYOND allocated memory.

Priority: MEDIUM
CVSS v3: 7.8
Component: cryptsetup
Publish Date: Sep 16, 2020
Related ID: --
CVSS v2: HIGH
Modified Date: Sep 20, 2020

Find out more about CVE-2020-14382 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Not Vulnerable -- -- --
Wind River Linux 8 Not Vulnerable -- -- --
Wind River Linux 9 Not Vulnerable -- -- --
Wind River Linux 7 Requires LTSS -- -- --
Wind River Linux LTS 21 Not Vulnerable -- -- --
Wind River Linux LTS 22 Not Vulnerable -- -- --
Wind River Linux LTS 18 Not Vulnerable -- -- --
Wind River Linux LTS 19 Fixed LIN1019-5421
10.19.45.12 --
Wind River Linux CD release Not Vulnerable -- -- --
Wind River Linux 6 Not Vulnerable -- -- --
Wind River Linux LTS 23 Not Vulnerable -- -- --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --
Helix Virtualization Platform Cert Edition
Helix Virtualization Platform Cert Edition Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
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