GHSA-8p2w-g92w-f4x3 · 深刻度： high — In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA...
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present The DATA-packet handler in rxrpc_input_call_event() and the RESPONSE handler in rxrpc_verify_response() copy the skb to a linear one before calling into the security ops only when skb_cloned() is true. An skb that is not cloned but still carries externally-owned paged fragments (e.g. SKBFL_SHARED_FRAG set by splice() into a UDP socket via __ip_append_data, or a chained skb_has_frag_list()) falls through to the in-place decryption path, which binds the frag pages directly into the AEAD/skcipher SGL via skb_to_sgvec(). Extend the gate to also unshare when skb_has_frag_list() or skb_has_shared_frag() is true. This catches the splice-loopback vector and other externally-shared frag sources while preserving the zero-copy fast path for skbs whose frags are kernel-private (e.g. NIC page_pool RX, GRO). The OOM/trace handling already in place is reused.
総合評価: CVE-2026-43500 は悪用リスクが高い（77/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 40.27%、97 パーセンタイル） 根拠: 公開エクスプロイトが 2 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 |
|---|---|---|---|---|
| 52591 | exploit_db | edb | 2026-05-29 | Exploit-DB ↗ |
| 52585 | exploit_db | edb | 2026-05-27 | 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 | 2026-06-05 | 43.54% | 40.27% | -3.27% |
| 2 | 2026-06-03 | 40.27% | 43.54% | +3.27% |
| 3 | 2026-05-30 | — | 40.27% | — |
EPSS の全履歴 （全 8 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 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-8p2w-g92w-f4x3 · 深刻度： high — In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-43500 not yet assigned priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. | https://security-tracker.debian.org/tracker/CVE-2026-43500 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2026-43500 |
suse
|
high | CVE-2026-43500 severity important: SUSE including 119 source package names (bpftool-4.18.0-553.123.1.el8_10.1, cluster-md-kmp-default, …), 268 product×package rows across 38 product lines (SUSE Liberty Linux 8, SUSE Liberty Linux 9, … (38 product lines)): Known Not Affected 152, Fixed 82, First Fixed 34. | https://www.suse.com/security/cve/CVE-2026-43500/ |
ubuntu
|
high | CVE-2026-43500 high priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1422 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1024, ignored 169, released 84, pending 66, needed 56, not-affected 23. | https://ubuntu.com/security/CVE-2026-43500 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | > 5.3, < 6.18.29 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.19, < 7.0.6 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 5.3 | cpe:2.3:o:linux:linux_kernel:5.3:-:*:*:*:*:*:* |
| linux | linux_kernel | 5.3 | cpe:2.3:o:linux:linux_kernel:5.3:rc7:*:*:*:*:*:* |
| linux | linux_kernel | 5.3 | cpe:2.3:o:linux:linux_kernel:5.3:rc8:*:*:*:*:*:* |
| linux | linux_kernel | 7.1 | cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 7.1 | cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* |