CVE-2020-26235

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.

• CWE-476
• CWE-476

• https://crates.io/crates/time/0.2.23Release Notes, Vendor Advisory
• https://github.com/time-rs/time/issues/293Issue Tracking, Third Party Advisory
• https://github.com/time-rs/time/security/advisories/GHSA-wcg3-cvx6-7396Patch, Third Party Advisory
• https://crates.io/crates/time/0.2.23Release Notes, Vendor Advisory
• https://github.com/time-rs/time/issues/293Issue Tracking, Third Party Advisory
• https://github.com/time-rs/time/security/advisories/GHSA-wcg3-cvx6-7396Patch, Third Party Advisory

Published

Nov 24, 2020

Last Modified

Jun 17, 2026

Status

Modified

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