CVE-2017-17862 log
| Source |
|
| Severity | Medium |
| Remote | No |
| Type | Denial of service |
| Description | It has been discovered that kernel/bpf/verifier.c in the Linux kernel before 4.14.9 and 4.9.72 ignore unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service. |
| Group | Package | Affected | Fixed | Severity | Status | Ticket |
|---|---|---|---|---|---|---|
| AVG-574 | linux-hardened | 4.14.7.a-1 | 4.14.11.a-1 | High | Fixed | FS#56832 |
| AVG-571 | linux-zen | 4.14.7-1 | 4.14.11-1 | High | Fixed | FS#56832 |
| AVG-561 | linux-lts | 4.9.68-1 | 4.9.74-1 | High | Fixed | |
| AVG-552 | linux | 4.14.7-1 | 4.14.11-1 | High | Fixed | FS#56832 |
| Date | Advisory | Group | Package | Severity | Type |
|---|---|---|---|---|---|
| 05 Jan 2018 | ASA-201801-4 | AVG-574 | linux-hardened | High | multiple issues |
| 05 Jan 2018 | ASA-201801-3 | AVG-571 | linux-zen | High | multiple issues |
| 05 Jan 2018 | ASA-201801-2 | AVG-561 | linux-lts | High | multiple issues |
| 05 Jan 2018 | ASA-201801-1 | AVG-552 | linux | High | multiple issues |
| References |
|---|
https://bugs.chromium.org/p/project-zero/issues/detail?id=1454 http://www.openwall.com/lists/oss-security/2017/12/21/2 https://git.kernel.org/linus/c131187db2d3fa2f8bf32fdf4e9a4ef805168467 |
| Notes |
|---|
Workaround by disabling unprivileged bpf: sysctl -w kernel.unprivileged_bpf_disabled=1 |