Time Crate up to 0.2.22 on Unix Environment Variable try_now_local null pointer dereference

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Time Crate up to 0.2.22 on Unix. Impacted is the function 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/time::OffsetDateTime::try_now_local of the component Environment Variable Handler. The manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2020-26235. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Time Crate up to 0.2.22 on Unix (Rust Package). Affected is the function 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/time::OffsetDateTime::try_now_local of the component Environment Variable Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was shared 11/25/2020. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2020-26235. There are known technical details, but no exploit is available.

Upgrading to version 0.2.23 eliminates this vulnerability. The upgrade is hosted for download at crates.io.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Time Crate 0.2.23

Timelineinfo

10/01/2020 🔍
11/25/2020 +55 days 🔍
11/25/2020 +0 days 🔍
12/10/2020 +15 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-26235 (🔍)
GCVE (CVE): GCVE-0-2020-26235
GCVE (VulDB): GCVE-100-165324

Entryinfo

Created: 11/25/2020 06:42
Updated: 12/10/2020 13:10
Changes: 11/25/2020 06:42 (42), 12/10/2020 13:06 (5), 12/10/2020 13:10 (8)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!