A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.
総合評価: CVE-2018-16881 は中リスク(57.8/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 2.24%、80 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.62% | 2.24% | -0.38% |
| 2 | 2025-12-26 | 2.72% | 2.62% | -0.10% |
| 3 | 2025-11-21 | — | 2.72% | — |
EPSS の全履歴 (全 21 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.3 | 3.0 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2018-16881 not yet assigned priority: Debian including 1 source packages (rsyslog), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-16881 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-16881 |
suse
|
high | CVE-2018-16881 severity important: SUSE including 282 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 417 product×package rows across 33 product lines (Container caasp/v4/haproxy, Image SLES12-SP5-OCI-BYOS-BYOS, … (33 product lines)): Known Affected 231, Fixed 107, Known Not Affected 79. | https://www.suse.com/security/cve/CVE-2018-16881/ |
ubuntu
|
low | CVE-2018-16881 low priority: Ubuntu including 1 source packages (rsyslog), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 16, released 2, needed 1. | https://ubuntu.com/security/CVE-2018-16881 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| rsyslog | rsyslog | < 8.27.0 | cpe:2.3:a:rsyslog:rsyslog:*:*:*:*:*:*:*:* |
| redhat | virtualization_manager | 4.3 | cpe:2.3:a:redhat:virtualization_manager:4.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_ibm_z_systems | 7.0 | cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian | 7.0 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_little_endian | 7.0 | cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_scientific_computing | 7.0 | cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| redhat | virtualization | 4.0 | cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* |
| redhat | virtualization_host | 4.0 | cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://access.redhat.com/errata/RHBA-2019:2501 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:2110 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:2437 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:2439 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16881 | Issue Tracking Mitigation Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/05/msg00028.html | Mailing List Third Party Advisory |