GHSA-m75h-cghq-c8h5 · 深刻度： critical · エコシステム： npm — Heap Based Buffer Overflow in libyaml
The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow.
総合評価: CVE-2013-6393 は中リスク（60.4/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 9.31%、95 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
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 | 2026-06-24 | 9.23% | 9.31% | +0.08% |
| 2 | 2026-06-15 | 7.68% | 9.23% | +1.56% |
| 3 | 2026-06-11 | — | 7.68% | — |
EPSS の全履歴 （全 18 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 |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
GHSA-m75h-cghq-c8h5 · 深刻度： critical · エコシステム： npm — Heap Based Buffer Overflow in libyaml
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2013-6393 not yet assigned priority: Debian including 2 source packages (libyaml, libyaml-libyaml-perl), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2013-6393 |
gentoo
|
normal | CVE-2013-6393: 1 GLSA(s) (201403-02), 1 atom(s) (dev-libs/libyaml); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-6393 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2013-6393 |
suse
|
medium | CVE-2013-6393 severity moderate: SUSE including 258 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 351 product×package rows across 77 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (77 product lines)): Known Affected 157, Fixed 149, Known Not Affected 45. | https://www.suse.com/security/cve/CVE-2013-6393/ |
ubuntu
|
medium | CVE-2013-6393 medium priority: Ubuntu including 2 source packages (libyaml, libyaml-libyaml-perl), 11 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): released 7, ignored 3, needed 1. | https://ubuntu.com/security/CVE-2013-6393 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| pyyaml | libyaml | <= 0.1.4 | cpe:2.3:a:pyyaml:libyaml:*:*:*:*:*:*:*:* |
| pyyaml | libyaml | 0.0.1 | cpe:2.3:a:pyyaml:libyaml:0.0.1:*:*:*:*:*:*:* |
| pyyaml | libyaml | 0.1.1 | cpe:2.3:a:pyyaml:libyaml:0.1.1:*:*:*:*:*:*:* |
| pyyaml | libyaml | 0.1.2 | cpe:2.3:a:pyyaml:libyaml:0.1.2:*:*:*:*:*:*:* |
| pyyaml | libyaml | 0.1.3 | cpe:2.3:a:pyyaml:libyaml:0.1.3:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 12.10 | cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 13.10 | cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* |
| redhat | openstack | 3.0 | cpe:2.3:a:redhat:openstack:3.0:*:*:*:*:*:*:* |
| redhat | openstack | 4.0 | cpe:2.3:a:redhat:openstack:4.0:*:*:*:*:*:*:* |
| debian | debian_linux | 6.0 | cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| opensuse | leap | 42.1 | cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* |
| opensuse | opensuse | 11.4 | cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.1 | cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.2 | cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* |