Vulnerability Details : 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 category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2018-11503
Probability of exploitation activity in the next 30 days: 0.36%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 72 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-11503
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST |
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2018-11503
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The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-11503
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https://github.com/Orc/discount/issues/189#issuecomment-392247798
Several heap buffer overflow issues have been found. · Issue #189 · Orc/discount · GitHubIssue Tracking;Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2018/09/msg00009.html
[SECURITY] [DLA 1499-1] discount security updateMailing List;Third Party Advisory
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https://www.debian.org/security/2018/dsa-4293
Debian -- Security Information -- DSA-4293-1 discountThird Party Advisory
Products affected by CVE-2018-11503
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:discount_project:discount:2.2.3:a:*:*:*:*:*:*