Bug 1985235 (CVE-2021-36979)

Summary: CVE-2021-36979 unicorn: out-of-bounds write in tb_flush_armeb
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
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Hardware: All   
OS: Linux   
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Last Closed: 2021-07-23 09:54:56 UTC Type: ---
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Bug Depends On: 1985236    
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Description Marian Rehak 2021-07-23 08:35:20 UTC
Unicorn Engine 1.0.2 has an out-of-bounds write in tb_flush_armeb (called from cpu_arm_exec_armeb and tcg_cpu_exec_armeb).

Reference:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30391
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/unicorn/OSV-2020-2305.yaml
https://github.com/unicorn-engine/unicorn/commit/bf1713d9e011b55ca1f502a6779fc4722b4bb077

Comment 1 Marian Rehak 2021-07-23 08:36:01 UTC
Created unicorn tracking bugs for this issue:

Affects: fedora-all [bug 1985236]

Comment 2 Product Security DevOps Team 2021-07-23 09:54:56 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.