Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-42574 |
CWE-ID | CWE-20 |
Exploitation vector | Local |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software |
Anolis OS Operating systems & Components / Operating system rust-src Operating systems & Components / Operating system package or component rust-lldb Operating systems & Components / Operating system package or component rust-gdb Operating systems & Components / Operating system package or component rust-debugger-common Operating systems & Components / Operating system package or component cargo-doc Operating systems & Components / Operating system package or component rustfmt Operating systems & Components / Operating system package or component rust-toolset Operating systems & Components / Operating system package or component rust-std-static-wasm32-unknown-unknown Operating systems & Components / Operating system package or component rust-std-static Operating systems & Components / Operating system package or component rust-doc Operating systems & Components / Operating system package or component rust-analysis Operating systems & Components / Operating system package or component rust Operating systems & Components / Operating system package or component rls Operating systems & Components / Operating system package or component clippy Operating systems & Components / Operating system package or component cargo Operating systems & Components / Operating system package or component |
Vendor | OpenAnolis |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU57848
Risk: Low
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2021-42574
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: Yes
DescriptionThe vulnerability allows an attacker to bypass certain security checks.
The vulnerability exists in the Bidirectional Algorithm in the Unicode Specification. It permits the visual reordering of characters via control sequences, which can be used to craft source code that renders different logic than the logical ordering of tokens ingested by compilers and interpreters.
An attacker can leverage this behavior to encode source code for compilers accepting Unicode such that targeted vulnerabilities are introduced invisibly to human reviewers.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsAnolis OS: 8
rust-src: before 1.54.0-3
rust-lldb: before 1.54.0-3
rust-gdb: before 1.54.0-3
rust-debugger-common: before 1.54.0-3
cargo-doc: before 1.54.0-3
rustfmt: before 1.54.0-3
rust-toolset: before 1.54.0-1
rust-std-static-wasm32-unknown-unknown: before 1.54.0-3
rust-std-static: before 1.54.0-3
rust-doc: before 1.54.0-3
rust-analysis: before 1.54.0-3
rust: before 1.54.0-3
rls: before 1.54.0-3
clippy: before 1.54.0-3
cargo: before 1.54.0-3
CPE2.3https://anas.openanolis.cn/errata/detail/ANSA-2022:0047
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.