GHSA-45x7-px36-x8w8 · 深刻度： medium · エコシステム： rust — Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in [email protected] and (if CBC is used) the [email protected] MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.
総合評価: CVE-2023-48795 は悪用リスクが高い（71.7/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 53.00%、98 パーセンタイル） 根拠: 公開エクスプロイトが 3 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 ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | 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 | 2026-06-08 | 54.21% | 53.00% | -1.22% |
| 2 | 2026-05-29 | 52.61% | 54.21% | +1.61% |
| 3 | 2026-05-27 | — | 52.61% | — |
EPSS の全履歴 （全 178 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 |
|---|---|---|---|---|---|---|
| 5.9 | 3.1 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| 5.9 | 3.1 | MEDIUM |
|
2.2 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-45x7-px36-x8w8 · 深刻度： medium · エコシステム： rust — Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-48795: 21 source package rows (buildah, doctl, …); 110 state rows across 12 repos (3.17-main, 3.18-main, 3.19-community, 3.19-main, 3.20-community, 3.20-main, 3.21-community, 3.21-main, 3.22-community, 3.22-main, edge-community, edge-main); fixed 110, open 0. | https://security.alpinelinux.org/vuln/CVE-2023-48795 |
debian
|
unimportant | CVE-2023-48795 unimportant priority: Debian including 18 source packages (dropbear, erlang, …), 88 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 76, open 12. | https://security-tracker.debian.org/tracker/CVE-2023-48795 |
gentoo
|
normal | CVE-2023-48795: 5 GLSA(s) (202312-16, 202312-17, …), 5 atom(s) (app-containers/podman, net-ftp/proftpd, net-libs/libssh, net-misc/openssh, net-misc/putty); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-48795 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-48795 |
suse
|
high | CVE-2023-48795 severity important: SUSE including 740 source package names (1.2.3-2.2.63:libssh-config-0.9.8-150400.3.3.1, 1.2.3-2.2.63:libssh4-0.9.8-150400.3.3.1, …), 2645 product×package rows across 350 product lines (Container bci/golang, Container bci/nodejs, … (350 product lines)): Fixed 2282, Known Affected 195, Known Not Affected 164, Will Not Fix 4. | https://www.suse.com/security/cve/CVE-2023-48795/ |
ubuntu
|
medium | CVE-2023-48795 medium priority: Ubuntu including 13 source packages (dropbear, filezilla, …), 156 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 48, ignored 37, not-affected 32, needs-triage 27, DNE 12. | https://ubuntu.com/security/CVE-2023-48795 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openbsd | openssh | < 9.6 | cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* |
| putty | putty | < 0.80 | cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:* |
| filezilla-project | filezilla_client | < 3.66.4 | cpe:2.3:a:filezilla-project:filezilla_client:*:*:*:*:*:*:*:* |
| panic | transmit_5 | < 5.10.4 | cpe:2.3:a:panic:transmit_5:*:*:*:*:*:*:*:* |
| panic | nova | < 11.8 | cpe:2.3:a:panic:nova:*:*:*:*:*:*:*:* |
| roumenpetrov | pkixssh | < 14.4 | cpe:2.3:a:roumenpetrov:pkixssh:*:*:*:*:*:*:*:* |
| winscp | winscp | < 6.2.2 | cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:* |
| bitvise | ssh_client | < 9.33 | cpe:2.3:a:bitvise:ssh_client:*:*:*:*:*:*:*:* |
| bitvise | ssh_server | < 9.32 | cpe:2.3:a:bitvise:ssh_server:*:*:*:*:*:*:*:* |
| lancom-systems | lcos | <= 3.66.4 | cpe:2.3:o:lancom-systems:lcos:*:*:*:*:*:*:*:* |
| lancom-systems | lcos_fx | — | cpe:2.3:o:lancom-systems:lcos_fx:-:*:*:*:*:*:*:* |
| lancom-systems | lcos_lx | — | cpe:2.3:o:lancom-systems:lcos_lx:-:*:*:*:*:*:*:* |
| lancom-systems | lcos_sx | 4.20 | cpe:2.3:o:lancom-systems:lcos_sx:4.20:*:*:*:*:*:*:* |
| lancom-systems | lcos_sx | 5.20 | cpe:2.3:o:lancom-systems:lcos_sx:5.20:*:*:*:*:*:*:* |
| lancom-systems | lanconfig | — | cpe:2.3:o:lancom-systems:lanconfig:-:*:*:*:*:*:*:* |
| vandyke | securecrt | < 9.4.3 | cpe:2.3:a:vandyke:securecrt:*:*:*:*:*:*:*:* |
| libssh | libssh | < 0.10.6 | cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* |
| net-ssh | net-ssh | 7.2.0 | cpe:2.3:a:net-ssh:net-ssh:7.2.0:*:*:*:*:ruby:*:* |
| ssh2_project | ssh2 | <= 1.11.0 | cpe:2.3:a:ssh2_project:ssh2:*:*:*:*:*:node.js:*:* |
| proftpd | proftpd | <= 1.3.8b | cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:* |
| freebsd | freebsd | <= 12.4 | cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* |
| crates | thrussh | < 0.35.1 | cpe:2.3:a:crates:thrussh:*:*:*:*:*:*:*:* |
| tera_term_project | tera_term | <= 5.1 | cpe:2.3:a:tera_term_project:tera_term:*:*:*:*:*:*:*:* |
| oryx-embedded | cyclone_ssh | < 2.3.4 | cpe:2.3:a:oryx-embedded:cyclone_ssh:*:*:*:*:*:*:*:* |
| crushftp | crushftp | <= 10.6.0 | cpe:2.3:a:crushftp:crushftp:*:*:*:*:*:*:*:* |
| netsarang | xshell_7 | < build__0144 | cpe:2.3:a:netsarang:xshell_7:*:*:*:*:*:*:*:* |
| paramiko | paramiko | < 3.4.0 | cpe:2.3:a:paramiko:paramiko:*:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.0 | cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* |
| redhat | openstack_platform | 16.1 | cpe:2.3:a:redhat:openstack_platform:16.1:*:*:*:*:*:*:* |
| redhat | openstack_platform | 16.2 | cpe:2.3:a:redhat:openstack_platform:16.2:*:*:*:*:*:*:* |
| redhat | openstack_platform | 17.1 | cpe:2.3:a:redhat:openstack_platform:17.1:*:*:*:*:*:*:* |
| redhat | ceph_storage | 6.0 | cpe:2.3:a:redhat:ceph_storage:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 9.0 | cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
| redhat | openshift_serverless | — | cpe:2.3:a:redhat:openshift_serverless:-:*:*:*:*:*:*:* |
| redhat | openshift_gitops | — | cpe:2.3:a:redhat:openshift_gitops:-:*:*:*:*:*:*:* |
| redhat | openshift_pipelines | — | cpe:2.3:a:redhat:openshift_pipelines:-:*:*:*:*:*:*:* |
| redhat | openshift_developer_tools_and_services | — | cpe:2.3:a:redhat:openshift_developer_tools_and_services:-:*:*:*:*:*:*:* |
| redhat | openshift_data_foundation | 4.0 | cpe:2.3:a:redhat:openshift_data_foundation:4.0:*:*:*:*:*:*:* |
| redhat | openshift_api_for_data_protection | — | cpe:2.3:a:redhat:openshift_api_for_data_protection:-:*:*:*:*:*:*:* |
| redhat | openshift_virtualization | 4 | cpe:2.3:a:redhat:openshift_virtualization:4:*:*:*:*:*:*:* |
| redhat | storage | 3.0 | cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:* |
| redhat | discovery | — | cpe:2.3:a:redhat:discovery:-:*:*:*:*:*:*:* |
| redhat | openshift_dev_spaces | — | cpe:2.3:a:redhat:openshift_dev_spaces:-:*:*:*:*:*:*:* |
| redhat | cert-manager_operator_for_red_hat_openshift | — | cpe:2.3:a:redhat:cert-manager_operator_for_red_hat_openshift:-:*:*:*:*:*:*:* |
| redhat | keycloak | — | cpe:2.3:a:redhat:keycloak:-:*:*:*:*:*:*:* |
| redhat | jboss_enterprise_application_platform | 7.0 | cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0:*:*:*:*:*:*:* |
| redhat | single_sign-on | 7.0 | cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:* |
| redhat | advanced_cluster_security | 3.0 | cpe:2.3:a:redhat:advanced_cluster_security:3.0:*:*:*:*:*:*:* |
| redhat | advanced_cluster_security | 4.0 | cpe:2.3:a:redhat:advanced_cluster_security:4.0:*:*:*:*:*:*:* |
| golang | crypto | < 0.17.0 | cpe:2.3:a:golang:crypto:*:*:*:*:*:*:*:* |
| russh_project | russh | < 0.40.2 | cpe:2.3:a:russh_project:russh:*:*:*:*:*:rust:*:* |
| sftpgo_project | sftpgo | < 2.5.6 | cpe:2.3:a:sftpgo_project:sftpgo:*:*:*:*:*:*:*:* |
| erlang | erlang\/otp | < 22.3.4.27 | cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
| erlang | erlang\/otp | >= 23.0, < 23.3.4.20 | cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
| erlang | erlang\/otp | >= 24.0, < 24.3.4.15 | cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
| erlang | erlang\/otp | >= 25.0, < 25.3.2.8 | cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
| erlang | erlang\/otp | >= 26.0, < 26.2.1 | cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* |
| matez | jsch | < 0.2.15 | cpe:2.3:a:matez:jsch:*:*:*:*:*:*:*:* |
| libssh2 | libssh2 | < 1.11.1 | cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:* |
| asyncssh_project | asyncssh | < 2.14.2 | cpe:2.3:a:asyncssh_project:asyncssh:*:*:*:*:*:*:*:* |
| dropbear_ssh_project | dropbear_ssh | < 2022.83 | cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:* |
| jadaptive | maverick_synergy_java_ssh_api | < 3.1.0-snapshot | cpe:2.3:a:jadaptive:maverick_synergy_java_ssh_api:*:*:*:*:*:*:*:* |
| ssh | ssh | < 4.9.1.5 | cpe:2.3:a:ssh:ssh:*:*:*:*:*:*:*:* |
| ssh | ssh | >= 4.10, < 4.11.1.7 | cpe:2.3:a:ssh:ssh:*:*:*:*:*:*:*:* |
| ssh | ssh | >= 4.12, < 4.13.2.4 | cpe:2.3:a:ssh:ssh:*:*:*:*:*:*:*:* |
| ssh | ssh | >= 4.14, < 4.15.3.1 | cpe:2.3:a:ssh:ssh:*:*:*:*:*:*:*:* |
| ssh | ssh | >= 5.0, < 5.1.1 | cpe:2.3:a:ssh:ssh:*:*:*:*:*:*:*:* |
| thorntech | sftp_gateway_firmware | < 3.4.6 | cpe:2.3:o:thorntech:sftp_gateway_firmware:*:*:*:*:*:*:*:* |
| netgate | pfsense_plus | <= 23.09.1 | cpe:2.3:a:netgate:pfsense_plus:*:*:*:*:*:*:*:* |
| netgate | pfsense_ce | <= 2.7.2 | cpe:2.3:a:netgate:pfsense_ce:*:*:*:*:*:*:*:* |
| crushftp | crushftp | < 10.6.0 | cpe:2.3:a:crushftp:crushftp:*:*:*:*:*:*:*:* |
| connectbot | sshlib | < 2.2.22 | cpe:2.3:a:connectbot:sshlib:*:*:*:*:*:*:*:* |
| apache | sshd | <= 2.11.0 | cpe:2.3:a:apache:sshd:*:*:*:*:*:*:*:* |
| apache | sshj | <= 0.37.0 | cpe:2.3:a:apache:sshj:*:*:*:*:*:*:*:* |
| tinyssh | tinyssh | <= 20230101 | cpe:2.3:a:tinyssh:tinyssh:*:*:*:*:*:*:*:* |
| trilead | ssh2 | 6401 | cpe:2.3:a:trilead:ssh2:6401:*:*:*:*:*:*:* |
| 9bis | kitty | <= 0.76.1.13 | cpe:2.3:a:9bis:kitty:*:*:*:*:*:*:*:* |
| gentoo | security | — | cpe:2.3:a:gentoo:security:-:*:*:*:*:*:*:* |
| fedoraproject | fedora | 38 | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |