CVE-2020-26235

Segmentation fault in Rust time crate

Description

In Rust time crate from version 0.2.7 and before version 0.2.23, unix-like operating systems may segfault due to dereferencing a dangling pointer in specific circumstances. This requires the user to set any environment variable in a different thread than the affected functions. The affected functions are time::UtcOffset::local_offset_at, time::UtcOffset::try_local_offset_at, time::UtcOffset::current_local_offset, time::UtcOffset::try_current_local_offset, time::OffsetDateTime::now_local and time::OffsetDateTime::try_now_local. Non-Unix targets are unaffected. This includes Windows and wasm. The issue was introduced in version 0.2.7 and fixed in version 0.2.23.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.78% Top 30%
Vendor Advisory crates.io
Affected: time-rs time
Published at:
Updated at:

References

Link Tags
https://github.com/time-rs/time/security/advisories/GHSA-wcg3-cvx6-7396 third party advisory patch
https://github.com/time-rs/time/issues/293 third party advisory issue tracking
https://crates.io/crates/time/0.2.23 release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-26235?
CVE-2020-26235 has been scored as a medium severity vulnerability.
How to fix CVE-2020-26235?
To fix CVE-2020-26235, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-26235 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-26235 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-26235?
CVE-2020-26235 affects time-rs time.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.