CVE-2019-12083

Name: CVE-2019-12083
Creator: NVD / NIST
Published: 2019-05-13T20:29:02.913+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 2.23%

Last modified Jun 17, 2026

CVE-2019-12083 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. The Rust Programming Language Standard Library 1.34.x before 1.34.2 contains a stabilized method which, if overridden, can violate Rust's safety guarantees and cause memory unsafety. If the `Error::type_id` method is overridden then any type can be safely cast to any other type, causing memory safety vulnerabilities in safe code (e.g., out-of-bounds write or read). EPSS estimates a 2.23% chance of exploitation in the next 30 days.

Description

The Rust Programming Language Standard Library 1.34.x before 1.34.2 contains a stabilized method which, if overridden, can violate Rust's safety guarantees and cause memory unsafety. If the `Error::type_id` method is overridden then any type can be safely cast to any other type, causing memory safety vulnerabilities in safe code (e.g., out-of-bounds write or read). Code that does not manually implement Error::type_id is unaffected.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.23%

80.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Rust-Lang	Rust	>= 1.34.0, < 1.34.2
Fedoraproject	Fedora	29
Fedoraproject	Fedora	30
Opensuse	Leap	15.1

References

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00076.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00006.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00031.htmlMailing List, Third Party Advisory
https://blog.rust-lang.org/2019/05/13/Security-advisory.htmlExploit, Mitigation, Vendor Advisory
https://groups.google.com/forum/#%21topic/rustlang-security-announcements/aZabeCMUv70
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HG47HYH3AQTUMBUMX3S3G5DNAY4CBW6N/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K6T4BNA5KQYJRIKIGGBOGBMR7TRXPHLR/
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00076.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00006.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00031.htmlMailing List, Third Party Advisory
https://blog.rust-lang.org/2019/05/13/Security-advisory.htmlExploit, Mitigation, Vendor Advisory
https://groups.google.com/forum/#%21topic/rustlang-security-announcements/aZabeCMUv70
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HG47HYH3AQTUMBUMX3S3G5DNAY4CBW6N/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K6T4BNA5KQYJRIKIGGBOGBMR7TRXPHLR/

Timeline

Published: May 13, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12083?

How severe is CVE-2019-12083?

CVE-2019-12083 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 2.23% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12083?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12083?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST