CVE-2020-26235 Information

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.

CVSS Vector

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

Reference

https://github.com/time-rs/time/issues/293 https://github.com/time-rs/time/security/advisories/GHSA-wcg3-cvx6-7396 https://crates.io/crates/time/0.2.23

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.3