Bug 1709709 (CVE-2019-12083) - CVE-2019-12083 rust: overriden stabilized method `Error::type_id` can violate Rust's safety guarantees leading to out-of-bounds write or read
Summary: CVE-2019-12083 rust: overriden stabilized method `Error::type_id` can violate...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-12083
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1709710 1709711 1709712
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-05-14 07:48 UTC by Marian Rehak
Modified: 2021-02-16 21:56 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-10 10:55:29 UTC
Embargoed:

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Description Marian Rehak 2019-05-14 07:48:42 UTC 
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.
External References:

https://blog.rust-lang.org/2019/05/13/Security-advisory.html
Comment 1 Marian Rehak 2019-05-14 07:48:58 UTC 
Created rust tracking bugs for this issue:

Affects: epel-7 [bug 1709712]
Affects: fedora-29 [bug 1709710]
Affects: fedora-30 [bug 1709711]
Comment 2 Product Security DevOps Team 2019-06-10 10:55:29 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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