CVE-2018-20167

published 2018-12-17

CVE-2018-20167: Terminology before 1.3.1 allows Remote Code Execution because popmedia is mishandled, as demonstrated by an unsafe "cat README.md" command when \e}pn is used…

Priority P3 39 high 7.8 CVSS 3.0

AV L AC L PR N UI R S U C H I H A H

Terminology before 1.3.1 allows Remote Code Execution because popmedia is mishandled, as demonstrated by an unsafe "cat README.md" command when \e}pn is used. A popmedia control sequence can allow the malicious execution of executable file formats registered in the X desktop share MIME types (/usr/share/applications). The control sequence defers unknown file types to the handle_unknown_media() function, which executes xdg-open against the filename specified in the sequence. The use of xdg-open for all unknown file types allows executable file formats with a registered shared MIME type to be executed. An attacker can achieve remote code execution by introducing an executable file and a plain text file containing the control sequence through a fake software project (e.g., in Git or a tarball). When the control sequence is rendered (such as with cat), the executable file will be run.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	terminology	< terminology 1.3.1-1 (bookworm)	terminology 1.3.1-1 (bookworm)
enlightenment	terminology	< 1.3.1	1.3.1
enlightenment	terminology	>= 0 < 1.3.1-1	1.3.1-1
enlightenment	terminology	>= 0 < 1.3.1-1	1.3.1-1
enlightenment	terminology	>= 0 < 1.3.1-1	1.3.1-1
enlightenment	terminology	>= 0 < 1.3.1-1	1.3.1-1

CVSS provenance

nvd v3.0 7.8 HIGH CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd v2.0 6.8 MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P

osv 7.8 HIGH

vendor_debian 7.8 HIGH

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CWE-74