A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`. $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;' Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.
総合評価: CVE-2024-56406 は中リスク（47/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.47%、37 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 | 0.06% | 0.47% | +0.41% |
| 2 | 2026-02-04 | 0.02% | 0.06% | +0.04% |
| 3 | 2026-02-01 | — | 0.02% | — |
EPSS の全履歴 （全 12 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 |
|---|---|---|---|---|---|---|
| 8.4 | 3.1 | HIGH |
|
2.5 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-56406: 1 source package rows (perl); 26 state rows across 6 repos (3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 8, open 18. | https://security.alpinelinux.org/vuln/CVE-2024-56406 |
debian
|
unimportant | CVE-2024-56406 unimportant priority: Debian including 1 source packages (perl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2024-56406 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2024-56406 |
suse
|
high | CVE-2024-56406 severity important: SUSE including 259 source package names (13.2-9.1:perl-5.38.2-slfo.1.1_2.1, 13.2-9.1:perl-base-5.38.2-slfo.1.1_2.1, …), 449 product×package rows across 86 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (86 product lines)): Known Affected 231, Known Not Affected 130, Fixed 88. | https://www.suse.com/security/cve/CVE-2024-56406/ |
ubuntu
|
medium | CVE-2024-56406 medium priority: Ubuntu including 1 source packages (perl), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, trusty, upstream, xenial): released 5, not-affected 4. | https://ubuntu.com/security/CVE-2024-56406 |