Apport prior 2.20.11-0ubuntu57 /proc/pid/stat get_starttime input validation

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CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability classified as critical has been found in Apport. Affected is the function get_starttime of the file /proc/pid/stat. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-20. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

It was discovered that the get_starttime() function in data/apport did not properly parse the /proc/pid/stat file from the kernel.

The weakness was disclosed 06/11/2021. The advisory is shared for download at bugs.launchpad.net. This vulnerability is traded as CVE-2021-25683 since 01/21/2021. Access to the local network is required for this attack. The requirement for exploitation is a authentication. Technical details and a public exploit are known.

It is declared as proof-of-concept. The exploit is shared for download at bugs.launchpad.net.

Upgrading to version 2.20.11-0ubuntu57 eliminates this vulnerability.

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.2

VulDB Base Score: 8.0
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

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

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Apport 2.20.11-0ubuntu57

Timelineinfoedit

01/21/2021 CVE assigned
06/11/2021 +140 days Advisory disclosed
06/11/2021 +0 days VulDB entry created
06/13/2021 +2 days VulDB last update

Sourcesinfoedit

Advisory: bugs.launchpad.net
Status: Confirmed

CVE: CVE-2021-25683 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfoedit

Created: 06/11/2021 01:27 PM
Updated: 06/13/2021 12:54 PM
Changes: (1) source_cve_cna
Complete: 🔍

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