Buffer overflow in Ezxml Project
CVE-2021-31229
An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd() performs incorrect memory handling while parsing crafted XML files, which leads to an out-of-bounds write of a one byte constant.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (61.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Ezxml Project — versions 0.8.6
- Debian Linux — versions 9.0
Weakness classification (CWE)
References
- sourceforge.net/p/ezxml/bugs/26/ (Exploit, Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2021/07/msg00005.html (mailing-list, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31229?
- CVE-2021-31229 is a medium-severity vulnerability in Ezxml Project, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2021-04-15.
- How severe is CVE-2021-31229?
- Medium severity. CVSS v3 base score is 6.5 out of 10.