Vulnerability · Published Apr 24, 2021 · Assigned by mitre
CVE-2021-31598
High 7.5
In plain English
A high-severity security flaw in the mapcache package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.3%top 30.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_decode() performs incorrect memory handling while parsing crafted XML files, leading to a heap-based buffer overflow.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | mapcache | no fix listed | DEBIAN-CVE-2021-31598 |
| Debian:13 | mapcache | no fix listed | DEBIAN-CVE-2021-31598 |
| Debian:14 | mapcache | no fix listed | DEBIAN-CVE-2021-31598 |
| Debian:12 | netcdf | 1:4.9.0-1 | DEBIAN-CVE-2021-31598 |
| Debian:13 | netcdf | 1:4.9.0-1 | DEBIAN-CVE-2021-31598 |
| Debian:14 | netcdf | 1:4.9.0-1 | DEBIAN-CVE-2021-31598 |
| Debian:12 | netcdf-parallel | 1:4.9.0-1 | DEBIAN-CVE-2021-31598 |
| Debian:13 | netcdf-parallel | 1:4.9.0-1 | DEBIAN-CVE-2021-31598 |
| Debian:14 | netcdf-parallel | 1:4.9.0-1 | DEBIAN-CVE-2021-31598 |
| Debian:12 | scilab | no fix listed | DEBIAN-CVE-2021-31598 |
| Debian:13 | scilab | no fix listed | DEBIAN-CVE-2021-31598 |
| Debian:14 | scilab | 2024.1.0+dfsg1-1 | DEBIAN-CVE-2021-31598 |
| Ubuntu:22.04:LTS | mapcache | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:24.04:LTS | mapcache | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:25.10 | mapcache | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:26.04:LTS | mapcache | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:26.10 | mapcache | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:22.04:LTS | netcdf | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:22.04:LTS | netcdf-parallel | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:24.04:LTS | netcdf-parallel | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:25.10 | netcdf-parallel | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:26.04:LTS | netcdf-parallel | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:22.04:LTS | scilab | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:24.04:LTS | scilab | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:25.10 | scilab | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:26.04:LTS | scilab | no fix listed | UBUNTU-CVE-2021-31598 |
| Ubuntu:26.10 | scilab | no fix listed | UBUNTU-CVE-2021-31598 |
Affected products (as reported)
References
- https://sourceforge.net/p/ezxml/bugs/28/ x_refsource_MISC
- [debian-lts-announce] 20210708 [SECURITY] [DLA 2705-1] scilab security update mailing-list, x_refsource_MLIST