CVE-2020-8017

race condition on texlive-filesystem cron job allows for the deletion of unintended files

Severity Score

6.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Race Condition Enabling Link Following vulnerability in the cron job shipped with texlive-filesystem of SUSE Linux Enterprise Module for Desktop Applications 15-SP1, SUSE Linux Enterprise Software Development Kit 12-SP4, SUSE Linux Enterprise Software Development Kit 12-SP5; openSUSE Leap 15.1 allows local users in group mktex to delete arbitrary files on the system This issue affects: SUSE Linux Enterprise Module for Desktop Applications 15-SP1 texlive-filesystem versions prior to 2017.135-9.5.1. SUSE Linux Enterprise Software Development Kit 12-SP4 texlive-filesystem versions prior to 2013.74-16.5.1. SUSE Linux Enterprise Software Development Kit 12-SP5 texlive-filesystem versions prior to 2013.74-16.5.1. openSUSE Leap 15.1 texlive-filesystem versions prior to 2017.135-lp151.8.3.1.

Una vulnerabilidad de Condición de Carrera habilitando un Seguimiento de Enlace en el trabajo de cron enviado con texlive-filesystem del SUSE Linux Enterprise Module for Desktop Applications 15-SP1, SUSE Linux Enterprise Software Development Kit 12-SP4, SUSE Linux Enterprise Software Development Kit 12-SP5; openSUSE Leap 15.1, permite a usuarios locales en el grupo mktex eliminar archivos arbitrarios sobre el sistema. Este problema afecta: texlive-filesystem de SUSE Linux Enterprise Module for Desktop Applications 15-SP1 versiones anteriores a 2017.135-9.5.1. texlive-filesystem de SUSE Linux Enterprise Software Development Kit 12-SP4 versiones anteriores a 2013.74-16.5.1. texlive-filesystem de SUSE Linux Enterprise Software Development Kit 12-SP5 versiones anteriores a 2013.74-16.5.1. texlive-filesystem de openSUSE Leap 15.1 versiones anteriores a 2017.135-lp151.8.3.1.

*Credits: Matthias Gerstner of SUSE

CVSS Scores

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-27 CVE Reserved
2020-04-02 CVE Published
2023-03-08 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00021.html	2022-11-21
https://bugzilla.suse.com/show_bug.cgi?id=1158910	2022-11-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opensuse Search vendor "Opensuse"	Texlive-filesystem Search vendor "Opensuse" for product "Texlive-filesystem"	< 2017.135-9.5.1 Search vendor "Opensuse" for product "Texlive-filesystem" and version " < 2017.135-9.5.1"	-	Affected	in	Suse Search vendor "Suse"	Linux Enterprise Desktop Search vendor "Suse" for product "Linux Enterprise Desktop"	15 Search vendor "Suse" for product "Linux Enterprise Desktop" and version "15"	sp1	Safe
Opensuse Search vendor "Opensuse"	Texlive-filesystem Search vendor "Opensuse" for product "Texlive-filesystem"	< 2013.74-16.5.1 Search vendor "Opensuse" for product "Texlive-filesystem" and version " < 2013.74-16.5.1"	-	Affected	in	Suse Search vendor "Suse"	Linux Enterprise Software Development Kit Search vendor "Suse" for product "Linux Enterprise Software Development Kit"	12 Search vendor "Suse" for product "Linux Enterprise Software Development Kit" and version "12"	sp4	Safe
Opensuse Search vendor "Opensuse"	Texlive-filesystem Search vendor "Opensuse" for product "Texlive-filesystem"	< 2013.74-16.5.1 Search vendor "Opensuse" for product "Texlive-filesystem" and version " < 2013.74-16.5.1"	-	Affected	in	Suse Search vendor "Suse"	Linux Enterprise Software Development Kit Search vendor "Suse" for product "Linux Enterprise Software Development Kit"	12 Search vendor "Suse" for product "Linux Enterprise Software Development Kit" and version "12"	sp5	Safe
Opensuse Search vendor "Opensuse"	Texlive-filesystem Search vendor "Opensuse" for product "Texlive-filesystem"	-	-	Affected	in	Suse Search vendor "Suse"	Linux Enterprise Desktop Search vendor "Suse" for product "Linux Enterprise Desktop"	15 Search vendor "Suse" for product "Linux Enterprise Desktop" and version "15"	-	Safe
Opensuse Search vendor "Opensuse"	Texlive-filesystem Search vendor "Opensuse" for product "Texlive-filesystem"	< 2017.135-lp151.8.3.1 Search vendor "Opensuse" for product "Texlive-filesystem" and version " < 2017.135-lp151.8.3.1"	-	Affected	in	Opensuse Search vendor "Opensuse"	Leap Search vendor "Opensuse" for product "Leap"	15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"	-	Safe
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected