Bug 1984521 (CVE-2020-36426)

Summary: CVE-2020-36426 mbedtls: buffer over-read in mbedtls_x509_crl_parse_der()
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
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Priority: medium    
Version: unspecifiedCC: ms, redhat-bugzilla
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Hardware: All   
OS: Linux   
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Last Closed: 2021-07-21 15:56:17 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 1984523, 1984524    
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Description Guilherme de Almeida Suckevicz 2021-07-21 15:05:22 UTC
An issue was discovered in Arm Mbed TLS before 2.24.0. mbedtls_x509_crl_parse_der has a buffer over-read (of one byte).

References:
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8
https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0
https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17

Comment 1 Guilherme de Almeida Suckevicz 2021-07-21 15:06:07 UTC
Created mbedtls tracking bugs for this issue:

Affects: epel-all [bug 1984523]
Affects: fedora-all [bug 1984524]

Comment 2 Product Security DevOps Team 2021-07-21 15:56:17 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.