Описание
A vulnerability exists in the chroot utility of uutils coreutils when using the --userspec option. The utility resolves the user specification via getpwnam() after entering the chroot but before dropping root privileges. On glibc-based systems, this can trigger the Name Service Switch (NSS) to load shared libraries (e.g., libnss_*.so.2) from the new root directory. If the NEWROOT is writable by an attacker, they can inject a malicious NSS module to execute arbitrary code as root, facilitating a full container escape or privilege escalation.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | needed | |
| esm-apps/noble | needed | |
| jammy | DNE | |
| noble | needed | |
| questing | ignored | end of life, was needed |
| resolute | needed | |
| upstream | needed |
Показывать по
7.8 High
CVSS3
Связанные уязвимости
A vulnerability exists in the chroot utility of uutils coreutils when using the --userspec option. The utility resolves the user specification via getpwnam() after entering the chroot but before dropping root privileges. On glibc-based systems, this can trigger the Name Service Switch (NSS) to load shared libraries (e.g., libnss_*.so.2) from the new root directory. If the NEWROOT is writable by an attacker, they can inject a malicious NSS module to execute arbitrary code as root, facilitating a full container escape or privilege escalation.
A vulnerability exists in the chroot utility of uutils coreutils when ...
7.8 High
CVSS3