High severity · published Sep 23, 2018
CVE-2018-17407
An issue was discovered in t1_check_unusual_charstring functions in writet1.c files in TeX Live before 2018-09-21
7.8
CVSS
2.1%
EPSS
No
On KEV
Description
An issue was discovered in t1_check_unusual_charstring functions in writet1.c files in TeX Live before 2018-09-21. A buffer overflow in the handling of Type 1 fonts allows arbitrary code execution when a malicious font is loaded by one of the vulnerable tools: pdflatex, pdftex, dvips, or luatex.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
TL
Tex Live · Tug
before 2018-09-21 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-17407
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-17407
Patch
https://github.com/TeX-Live/texlive-source/commit/6ed0077520e2b0da1fd060c7f88db7b2e6068e4c
Mailing List
https://lists.debian.org/debian-security-announce/2018/msg00230.html
Third Party Advisory
https://usn.ubuntu.com/3788-1/
Third Party Advisory
https://usn.ubuntu.com/3788-2/
Third Party Advisory
https://www.debian.org/security/2018/dsa-4299
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