A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.
総合評価: CVE-2023-28319 は悪用リスクが高い（75.9/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 2.49%、83 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）。 直近 1 日で EPSS が +2.05% 上昇。悪用への関心が高まっている可能性があります。 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 | 0.43% | 2.49% | +2.05% |
| 2 | 2026-06-13 | 0.32% | 0.43% | +0.11% |
| 3 | 2026-03-04 | — | 0.32% | — |
EPSS の全履歴 （全 33 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] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-28319: 1 source package rows (curl); 182 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 175. | https://security.alpinelinux.org/vuln/CVE-2023-28319 |
debian
|
unimportant | CVE-2023-28319 unimportant priority: Debian including 1 source packages (curl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-28319 |
gentoo
|
high | CVE-2023-28319: 1 GLSA(s) (202310-12), 1 atom(s) (net-misc/curl); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-28319 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-28319 |
suse
|
medium | CVE-2023-28319 severity moderate: SUSE including 345 source package names (0.58.0.1.264:libcurl4-8.0.1-150400.5.23.1, 0.58.0.17.247:curl-8.0.1-150400.5.23.1, …), 858 product×package rows across 274 product lines (Container bci/bci-init, Container bci/dotnet-aspnet, … (274 product lines)): Fixed 577, Known Affected 161, Known Not Affected 120. | https://www.suse.com/security/cve/CVE-2023-28319/ |
ubuntu
|
medium | CVE-2023-28319 medium priority: Ubuntu including 1 source packages (curl), 8 status rows across 8 suites (bionic, focal, jammy, kinetic, lunar, trusty, upstream, xenial): not-affected 7, released 1. | https://ubuntu.com/security/CVE-2023-28319 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| haxx | curl | < 8.1.0 | cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* |
| apple | macos | >= 11.0, < 11.7.9 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| apple | macos | >= 12.0, < 12.6.8 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| apple | macos | >= 13.0, < 13.5 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| netapp | clustered_data_ontap | — | cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* |
| netapp | ontap_antivirus_connector | — | cpe:2.3:a:netapp:ontap_antivirus_connector:-:*:*:*:*:*:*:* |
| netapp | h300s_firmware | — | cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* |
| netapp | h500s_firmware | — | cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* |
| netapp | h700s_firmware | — | cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* |
| netapp | h410s_firmware | — | cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://seclists.org/fulldisclosure/2023/Jul/47 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2023/Jul/48 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2023/Jul/52 | Mailing List Third Party Advisory |
| https://hackerone.com/reports/1913733 | Exploit Patch Third Party Advisory |
| https://security.gentoo.org/glsa/202310-12 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20230609-0009/ | Third Party Advisory |
| https://support.apple.com/kb/HT213843 | Third Party Advisory |
| https://support.apple.com/kb/HT213844 | Third Party Advisory |
| https://support.apple.com/kb/HT213845 | Third Party Advisory |