Integer overflow in the read_fragment_table_4 function in unsquash-4.c in Squashfs and sasquatch allows remote attackers to cause a denial of service (application crash) via a crafted input, which triggers a stack-based buffer overflow.
総合評価: CVE-2015-4645 は低リスク(33.6/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.16%、34 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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。
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 | 2025-03-30 | 0.31% | 0.16% | -0.15% |
| 2 | 2025-03-29 | 0.16% | 0.31% | +0.15% |
| 3 | 2025-03-17 | — | 0.16% | — |
EPSS の全履歴 (全 9 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 |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-4645 not yet assigned priority: Debian including 1 source packages (squashfs-tools), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2015-4645 |
gentoo
|
normal | CVE-2015-4645: 1 GLSA(s) (201701-73), 1 atom(s) (sys-fs/squashfs-tools); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-4645 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2015-4645 |
suse
|
medium | CVE-2015-4645 severity moderate: SUSE including 11 source package names (2.0.4-5.8.118:squashfs-4.6.1-150300.3.3.1, 9.24.43-10.1:squashfs-4.6.1-150300.3.3.1, …), 41 product×package rows across 40 product lines (Container bci/kiwi, Container suse/sle-micro-rancher/5.2, … (40 product lines)): Fixed 38, Known Not Affected 3. | https://www.suse.com/security/cve/CVE-2015-4645/ |
ubuntu
|
low | CVE-2015-4645 low priority: Ubuntu including 1 source packages (squashfs-tools), 13 status rows across 13 suites (artful, bionic, cosmic, disco, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 7, not-affected 4, DNE 1, released 1. | https://ubuntu.com/security/CVE-2015-4645 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| squashfs_project | squashfs | <= 4.3 | cpe:2.3:a:squashfs_project:squashfs:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 21 | cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* |
| fedoraproject | fedora | 22 | cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162171.html | Third Party Advisory |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162226.html | Third Party Advisory |
| http://www.securityfocus.com/bid/75272 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1234886 | Issue Tracking Third Party Advisory VDB Entry |
| https://github.com/devttys0/sasquatch/pull/5 | Third Party Advisory |
| https://github.com/plougher/squashfs-tools/commit/f95864afe8833fe3ad782d714b41378e860977b1 | Third Party Advisory |
| https://security.gentoo.org/glsa/201701-73 | Third Party Advisory VDB Entry |