A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Glibc | Gnu | * | 2.31 (excluding) |
| Red Hat Enterprise Linux 8 | RedHat | glibc-0:2.28-164.el8_5.3 | * |
| Red Hat Enterprise Linux 8 | RedHat | glibc-0:2.28-164.el8_5.3 | * |
| Eglibc | Ubuntu | trusty | * |
| Eglibc | Ubuntu | trusty/esm | * |
| Glibc | Ubuntu | bionic | * |
| Glibc | Ubuntu | esm-infra/xenial | * |
| Glibc | Ubuntu | focal | * |
| Glibc | Ubuntu | hirsute | * |
| Glibc | Ubuntu | impish | * |