Vulnerability · Published Jun 3, 2020 · Assigned by mitre
CVE-2020-13776
Medium 6.7
In plain English
A medium-severity privilege mismanagement in the systemd package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.7Medium
Exploit odds (30 days)0.5%top 59.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | systemd | 246-2 | DEBIAN-CVE-2020-13776 |
| Debian:13 | systemd | 246-2 | DEBIAN-CVE-2020-13776 |
| Debian:14 | systemd | 246-2 | DEBIAN-CVE-2020-13776 |
| Rocky Linux:8 | systemd | 0:239-45.el8 | RLSA-2021:1611 |
Affected products (as reported)
Weakness: CWE-269 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
References
- https://github.com/systemd/systemd/issues/15985 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20200611-0003/ x_refsource_CONFIRM
- FEDORA-2020-2faf839786 vendor-advisory, x_refsource_FEDORA
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html