Vulnerability Report

CVE-2020-26235

Title: Rust Time Crate Segfault via Dangling Pointer

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2020-26235.

CWE Category CWE-476
Published Date Nov 24, 2020
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.3 CVSS v3.1
Exploit Probability (EPSS)
0.50%

Vulnerability Summary

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.

Impacted Vendors

T
time_project 1

Reference Links

https://crates.io/crates/time/0.2.23 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 https://github.com/time-rs/time/issues/293 https://github.com/time-rs/time/security/advisories/GHSA-wcg3-cvx6-7396
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity LOW
3.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:S/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-26235 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.