An issue was discovered in bluetoothd in BlueZ through 5.48. The vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementation. By crafting a malicious CSTATE, it is possible to trick the server into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data. The root cause can be found in the function service_attr_req of sdpd-request.c. The server does not check whether the CSTATE data is the same in consecutive requests, and instead simply trusts that it is the same.
総合評価: CVE-2019-8921 は悪用リスクが高い(61.5/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.94%、56 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 0.05% | 0.94% | +0.89% |
| 2 | 2026-06-09 | 0.04% | 0.05% | +0.01% |
| 3 | 2026-03-24 | — | 0.04% | — |
EPSS の全履歴 (全 16 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 |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 3.3 | 2.0 | LOW |
|
6.5 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2019-8921 not yet assigned priority: Debian including 1 source packages (bluez), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2019-8921 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2019-8921 |
suse
|
high | CVE-2019-8921 severity important: SUSE including 17 source package names (bluez, bluez-4.99-0.9.9.1, …), 100 product×package rows across 40 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (40 product lines)): Fixed 86, Known Not Affected 14. | https://www.suse.com/security/cve/CVE-2019-8921/ |
ubuntu
|
medium | CVE-2019-8921 medium priority: Ubuntu including 1 source packages (bluez), 13 status rows across 13 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, trusty, upstream, xenial): not-affected 9, released 3, ignored 1. | https://ubuntu.com/security/CVE-2019-8921 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| bluez | bluez | <= 5.48 | cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20211203-0002/ | Third Party Advisory |
| https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/ | Exploit Patch Third Party Advisory |