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:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-07-23 09:54:56 UTC
Embargoed:

Attachments (Terms of Use)

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.
Note You need to log in before you can comment on or make changes to this bug.