CVE-2019-12083

moderate-risk

Published 2019-05-13

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.

Do I need to act?

0.73% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.1/10 High

NETWORK / HIGH complexity

Affected Products (4)

Rust

Fedora

Leap

Affected Vendors

Fedoraproject Opensuse Rust-Lang

References (14)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00076.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00006.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00031.html

Exploit https://blog.rust-lang.org/2019/05/13/Security-advisory.html

https://groups.google.com/forum/#%21topic/rustlang-security-announcements/aZabeC...

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00076.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00006.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00031.html

Exploit https://blog.rust-lang.org/2019/05/13/Security-advisory.html

https://groups.google.com/forum/#%21topic/rustlang-security-announcements/aZabeC...

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

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moderate-risk

Severity 24/34 · High

Exploitability 2/34 · Minimal

Exposure 10/34 · Low