Vulnerability · Published Aug 19, 2021 · Assigned by mitre
CVE-2020-18899
Medium 6.5
In plain English
A medium-severity resource allocation without limits in the exiv2 package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.7%top 23.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An uncontrolled memory allocation in DataBufdata(subBox.length-sizeof(box)) function of Exiv2 0.27 allows attackers to cause a denial of service (DOS) via a crafted input.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | exiv2 | 0.27.2-6 | DEBIAN-CVE-2020-18899 |
| Debian:13 | exiv2 | 0.27.2-6 | DEBIAN-CVE-2020-18899 |
| Debian:14 | exiv2 | 0.27.2-6 | DEBIAN-CVE-2020-18899 |
| PyPI | exiv2 | no fix listed | PYSEC-2021-879 |
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H