CVE-2020-8017

02.04.2020, 14:15

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.

TOCTOU

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	6.2 MEDIUM	LOCAL	LOW	NONE	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 6%

Affected Products (NVD)

Vendor	Product	Version
opensuse	texlive-filesystem	𝑥 < 2017.135-9.5.1
opensuse	texlive-filesystem	𝑥 < 2013.74-16.5.1
opensuse	texlive-filesystem	𝑥 < 2013.74-16.5.1
opensuse	texlive-filesystem	-
opensuse	texlive-filesystem	𝑥 < 2017.135-lp151.8.3.1
opensuse	leap	15.1

𝑥

= Vulnerable software versions

Ubuntu Releases

Ubuntu Product

Codename

texlive-base

bionic	not-affected
eoan	not-affected
trusty	dne
xenial	not-affected

openSUSE / SLES Releases

openSUSE Product

Release

libkpathsea6

suse enterprise desktop 15 SP1	6.2.3-11.13.2 fixed
suse enterprise sap 15 SP1	6.2.3-11.13.2 fixed
suse enterprise server 15 SP1	6.2.3-11.13.2 fixed

libptexenc1

suse enterprise desktop 15 SP1	1.3.5-11.13.2 fixed
suse enterprise sap 15 SP1	1.3.5-11.13.2 fixed
suse enterprise server 15 SP1	1.3.5-11.13.2 fixed

libsynctex1

suse enterprise desktop 15 SP1	1.18-11.13.2 fixed
suse enterprise sap 15 SP1	1.18-11.13.2 fixed
suse enterprise server 15 SP1	1.18-11.13.2 fixed

libtexlua52-5

suse enterprise desktop 15 SP1	5.2.4-11.13.2 fixed
suse enterprise sap 15 SP1	5.2.4-11.13.2 fixed
suse enterprise server 15 SP1	5.2.4-11.13.2 fixed

texlive

suse enterprise desktop 15 SP1	2017.20170520-11.13.2 fixed
suse enterprise sap 15 SP1	2017.20170520-11.13.2 fixed
suse enterprise server 15 SP1	2017.20170520-11.13.2 fixed

texlive-bin-devel

suse enterprise desktop 15 SP1	2017.20170520-11.13.2 fixed
suse enterprise sap 15 SP1	2017.20170520-11.13.2 fixed
suse enterprise server 15 SP1	2017.20170520-11.13.2 fixed

texlive-devel

suse enterprise desktop 15 SP1	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP2	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP3	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP4	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP5	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP6	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP7	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP1	2017.135-9.12.1 fixed
suse enterprise sap 15 SP2	2017.135-9.12.1 fixed
suse enterprise sap 15 SP3	2017.135-9.12.1 fixed
suse enterprise sap 15 SP4	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP5	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP6	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP7	2021.185-150400.19.4 fixed
suse enterprise server 15 SP1	2017.135-9.12.1 fixed
suse enterprise server 15 SP2	2017.135-9.12.1 fixed
suse enterprise server 15 SP3	2017.135-9.12.1 fixed
suse enterprise server 15 SP4	2021.185-150400.19.4 fixed
suse enterprise server 15 SP5	2021.185-150400.19.4 fixed
suse enterprise server 15 SP6	2021.185-150400.19.4 fixed
suse enterprise server 15 SP7	2021.185-150400.19.4 fixed

texlive-extratools

suse enterprise desktop 15 SP1	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP2	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP3	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP4	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP5	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP6	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP7	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP1	2017.135-9.12.1 fixed
suse enterprise sap 15 SP2	2017.135-9.12.1 fixed
suse enterprise sap 15 SP3	2017.135-9.12.1 fixed
suse enterprise sap 15 SP4	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP5	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP6	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP7	2021.185-150400.19.4 fixed
suse enterprise server 15 SP1	2017.135-9.12.1 fixed
suse enterprise server 15 SP2	2017.135-9.12.1 fixed
suse enterprise server 15 SP3	2017.135-9.12.1 fixed
suse enterprise server 15 SP4	2021.185-150400.19.4 fixed
suse enterprise server 15 SP5	2021.185-150400.19.4 fixed
suse enterprise server 15 SP6	2021.185-150400.19.4 fixed
suse enterprise server 15 SP7	2021.185-150400.19.4 fixed

texlive-filesystem

suse enterprise desktop 15 SP1	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP2	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP3	2017.135-9.12.1 fixed
suse enterprise desktop 15 SP4	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP5	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP6	2021.185-150400.19.4 fixed
suse enterprise desktop 15 SP7	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP1	2017.135-9.12.1 fixed
suse enterprise sap 15 SP2	2017.135-9.12.1 fixed
suse enterprise sap 15 SP3	2017.135-9.12.1 fixed
suse enterprise sap 15 SP4	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP5	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP6	2021.185-150400.19.4 fixed
suse enterprise sap 15 SP7	2021.185-150400.19.4 fixed
suse enterprise server 15 SP1	2017.135-9.12.1 fixed
suse enterprise server 15 SP2	2017.135-9.12.1 fixed
suse enterprise server 15 SP3	2017.135-9.12.1 fixed
suse enterprise server 15 SP4	2021.185-150400.19.4 fixed
suse enterprise server 15 SP5	2021.185-150400.19.4 fixed
suse enterprise server 15 SP6	2021.185-150400.19.4 fixed
suse enterprise server 15 SP7	2021.185-150400.19.4 fixed

texlive-kpathsea-devel

suse enterprise desktop 15 SP1	6.2.3-11.13.2 fixed
suse enterprise sap 15 SP1	6.2.3-11.13.2 fixed
suse enterprise server 15 SP1	6.2.3-11.13.2 fixed

texlive-ptexenc-devel

suse enterprise desktop 15 SP1	1.3.5-11.13.2 fixed
suse enterprise sap 15 SP1	1.3.5-11.13.2 fixed
suse enterprise server 15 SP1	1.3.5-11.13.2 fixed

texlive-synctex-devel

suse enterprise desktop 15 SP1	1.18-11.13.2 fixed
suse enterprise sap 15 SP1	1.18-11.13.2 fixed
suse enterprise server 15 SP1	1.18-11.13.2 fixed

texlive-texlua-devel

suse enterprise desktop 15 SP1	5.2.4-11.13.2 fixed
suse enterprise sap 15 SP1	5.2.4-11.13.2 fixed
suse enterprise server 15 SP1	5.2.4-11.13.2 fixed

Common Weakness Enumeration

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state.

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00021.html

https://bugzilla.suse.com/show_bug.cgi?id=1158910

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00021.html

https://bugzilla.suse.com/show_bug.cgi?id=1158910