Home/CVE/An issue was discovered in t1_check_unusual_charstring functions in writet1.c files in TeX Live before 2018-09-21. A buf
CVE

CVE-2018-17407

An issue was discovered in t1_check_unusual_charstring functions in writet1.c files in TeX Live before 2018-09-21. A buf

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.

HIGH · CVSS 7.8 EPSS 0.01357
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

3
tug tex live< 2018-09-21
canonical ubuntu linuxall versions
debian linuxall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Sep 2018 · 09:29 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

8
suse-csafopenSUSE-SU-2024:11431-1
suse-csafSUSE-SU-2018:3033-3
suse-csafSUSE-SU-2018:3033-2
usnUSN-3788-2
suse-csafSUSE-SU-2018:3122-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/TeX-Live/texlive-source/commit/6ed0077520e2b0da1fd060c7f88db7b2e6068e4cPatchThird Party Advisory
https://lists.debian.org/debian-security-announce/2018/msg00230.htmlMailing ListThird 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-4299Third Party Advisory
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