High severity · published Apr 14, 2021
CVE-2020-36323
In the standard library in Rust before 1.52.0, there is an optimization for joining strings that can cause uninitialized bytes to be exposed (or the program to crash) if the…
8.2
CVSS
2%
EPSS
No
On KEV
Description
In the standard library in Rust before 1.52.0, there is an optimization for joining strings that can cause uninitialized bytes to be exposed (or the program to crash) if the borrowed string changes after its length is checked.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
32; 33; 34 · source: NVD
RU
Rust · Rust-lang
before 1.52.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36323
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-36323
Patch
https://github.com/rust-lang/rust/issues/80335
Patch
https://github.com/rust-lang/rust/pull/81728
Patch
https://github.com/rust-lang/rust/pull/81728#issuecomment-821549174
Patch
https://github.com/rust-lang/rust/pull/81728#issuecomment-824904190
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CZ337CM4GFJLRDFVQCGC7J25V65JXOG5/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFUO3URYCO73D2Q4WYJBWAMJWGGVXQO4/
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