Bug 1985235 (CVE-2021-36979) - CVE-2021-36979 unicorn: out-of-bounds write in tb_flush_armeb
Summary: CVE-2021-36979 unicorn: out-of-bounds write in tb_flush_armeb
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-36979
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1985236
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-07-23 08:35 UTC by Marian Rehak
Modified: 2021-07-23 09:54 UTC (History)
2 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2021-07-23 09:54:56 UTC


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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.


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