Linux Kernel Race Condition Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 12/05/2023. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| big-ip access policy manager | ≥ 11.1.0, ≤ 11.5.1 | |
| big-ip advanced firewall manager | ≥ 11.3.0, ≤ 11.5.1 | |
| big-ip analytics | ≥ 11.1.0, ≤ 11.5.1 | |
| big-ip application acceleration manager | ≥ 11.4.0, ≤ 11.5.1 | |
| big-ip application security manager | ≥ 11.1.0, ≤ 11.5.1 | |
| big-ip edge gateway | ≥ 11.1.0, ≤ 11.3.0 | |
| big-ip global traffic manager | ≥ 11.1.0, ≤ 11.5.1 | |
| big-ip link controller | ≥ 11.1.0, ≤ 11.5.1 | |
| big-ip local traffic manager | ≥ 11.1.0, ≤ 11.5.1 | |
| big-ip policy enforcement manager | ≥ 11.3.0, ≤ 11.5.1 | |
| big-ip protocol security module | ≥ 11.1.0, ≤ 11.4.1 | |
| big-ip wan optimization manager | ≥ 11.1.0, ≤ 11.3.0 | |
| big-ip webaccelerator | ≥ 11.1.0, ≤ 11.3.0 | |
| big-iq application delivery controller | = 4.5.0 | |
| big-iq centralized management | = 4.6.0 | |
| big-iq cloud | ≥ 4.0.0, ≤ 4.5.0 | |
| big-iq cloud and orchestration | = 1.0.0 | |
| big-iq device | ≥ 4.2.0, ≤ 4.5.0 | |
| big-iq security | ≥ 4.0.0, ≤ 4.5.0 | |
| enterprise manager | = 3.1.0= 3.1.1 |
The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST" case, which allows local users to cause a denial of service (memory corruption and system crash) or gain privileges by triggering a race condition involving read and write operations with long strings.
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