Out-of-bounds Read in Discount Project
CVE-2018-11503
The isfootnote function in markdown.c in libmarkdown.a in DISCOUNT 2.2.3a allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted file, as demonstrated by mkd2html.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Discount Project — versions 2.2.3
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/Orc/discount/issues/189 (Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2018/09/msg00009.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2018/dsa-4293 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-11503?
- CVE-2018-11503 is a medium-severity vulnerability in Discount Project, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2018-05-26.
- How severe is CVE-2018-11503?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-11503 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.