Vulnerability Details : CVE-2021-36979
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).
Vulnerability category: Memory Corruption
Products affected by CVE-2021-36979
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:unicorn-engine:unicorn_engine:1.0.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-36979
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-36979
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-36979
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-36979
-
https://github.com/unicorn-engine/unicorn/commit/bf1713d9e011b55ca1f502a6779fc4722b4bb077
Add arm ite blocks samples from #853 (#1381) · unicorn-engine/unicorn@bf1713d · GitHubPatch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MZ6LOCJXHQVU6SCJLFDJINBOVJYYENLX/
[SECURITY] Fedora 35 Update: unicorn-1.0.3-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/unicorn/OSV-2020-2305.yaml
oss-fuzz-vulns/OSV-2020-2305.yaml at main · google/oss-fuzz-vulns · GitHubThird Party Advisory
-
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30391
30391 - unicorn:fuzz_emu_arm_armbe: Crash in tb_flush_armeb - oss-fuzzIssue Tracking;Patch;Third Party Advisory
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