Critical severity · published May 11, 2021
CVE-2021-32563
An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2
9.8
CVSS
3.1%
EPSS
No
On KEV
Description
An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2. When called with a regular file as a command-line argument, it delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.1% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TH
Thunar · Xfce
before 4.16.7; 4.17.0 before 4.17.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32563
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32563
Mailing List
http://www.openwall.com/lists/oss-security/2021/05/11/3
Mailing List
http://www.openwall.com/lists/oss-security/2023/01/05/1
Mailing List
http://www.openwall.com/lists/oss-security/2023/01/05/2
Patch
https://gitlab.xfce.org/xfce/thunar/-/commit/1b85b96ebf7cb9bf6a3ddf1acee7643643fdf92d
Patch
https://gitlab.xfce.org/xfce/thunar/-/commit/3b54d9d7dbd7fd16235e2141c43a7f18718f5664
Patch
https://gitlab.xfce.org/xfce/thunar/-/commit/9165a61f95e43cc0b5abf9b98eee2818a0191e0b
More from Thunar
7.8
CVE-2011-1588
Thunar before 1.3.1 could crash when copy and pasting a file name with % format characters due to a format string error
4.7
CVE-2018-18398
Xfce Thunar 1.6.15, when Xfce 4.12 is used, mishandles the IBus-Unikey input method for file searches within File Manager, leading to an out-of-bounds read and SEGV