CVE-2008-5021

nsFrameManager in Firefox 3.x before 3.0.4, Firefox 2.x before 2.0.0.18, Thunderbird 2.x before 2.0.0.18, and SeaMonkey 1.x before 1.1.13 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by modifying properties of a file input element while it is still being initialized, then using the blur method to access uninitialized memory.

公開: 2008-11-13 最終更新: 2026-04-23 Assigner: [email protected] ソース: [email protected]

総合評価: CVE-2008-5021 は高リスク(69.3/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 23.76%、96 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。

CVE-2008-5021 の EPSS(Exploit Prediction Scoring System)スコア

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 2026-04-09 25.26% 23.76% -1.50%
2 2025-07-29 16.20% 25.26% +9.06%
3 2025-06-01 16.20%

EPSS の全履歴 (全 20 件)

CVE-2008-5021 の CVSS(Common Vulnerability Scoring System)指標

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
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C クリックして展開
アクセス経路 (AV:N)
ルーティング可能なネットワーク越しに、遠隔から到達・悪用しうる。
アクセスの複雑さ (AC:M)
多少の有利条件は要るが、極端なレアケースではない。
認証 (AU:N)
認証を経ずに攻撃を完結できる。
機密性への影響 (C:C)
機密性は全面的に損なわれる。
完全性への影響 (I:C)
完全性は全面的に損なわれる。
可用性への影響 (A:C)
可用性は全面的に損なわれる。
8.6 10.0 [email protected]

CVE-2008-5021 の弱点分類(列挙)

CVE-2008-5021 の OS トラッカー

vendor priority summary link
gentoo high CVE-2008-5021: 1 GLSA(s) (201301-01), 14 atom(s) (dev-libs/nss, mail-client/mozilla-thunderbird, …); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2008-5021
redhat critical https://access.redhat.com/security/cve/CVE-2008-5021
ubuntu medium CVE-2008-5021 medium priority: Ubuntu including 10 source packages (firefox, firefox-3.0, …), 50 status rows across 5 suites (dapper, gutsy, hardy, intrepid, upstream): DNE 21, released 21, needs-triage 5, ignored 3. https://ubuntu.com/security/CVE-2008-5021

CVE-2008-5021 の影響を受けるソフトウェア/構成

ベンダー 製品 バージョン 生の CPE
mozilla firefox >= 2.0, < 2.0.0.18 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozilla firefox >= 3.0, < 3.0.4 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozilla seamonkey >= 1.0, < 1.1.13 cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
mozilla thunderbird >= 2.0, < 2.0.0.18 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
debian debian_linux 4.0 cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
canonical ubuntu_linux 6.06 cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*
canonical ubuntu_linux 7.10 cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 8.10 cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
fedoraproject fedora 8 cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
fedoraproject fedora 9 cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:*
suse linux_enterprise_debuginfo 10 cpe:2.3:a:suse:linux_enterprise_debuginfo:10:sp2:*:*:*:*:*:*
novell linux_desktop 9 cpe:2.3:o:novell:linux_desktop:9:*:*:*:*:*:*:*
novell open_enterprise_server cpe:2.3:o:novell:open_enterprise_server:-:*:*:*:*:*:*:*
opensuse opensuse 10.2 cpe:2.3:o:opensuse:opensuse:10.2:*:*:*:*:*:*:*
opensuse opensuse 10.3 cpe:2.3:o:opensuse:opensuse:10.3:*:*:*:*:*:*:*
opensuse opensuse 11.0 cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:*
suse linux_enterprise_desktop 10 cpe:2.3:o:suse:linux_enterprise_desktop:10:-:*:*:*:*:*:*
suse linux_enterprise_server 9 cpe:2.3:o:suse:linux_enterprise_server:9:*:*:*:*:*:*:*
suse linux_enterprise_server 10 cpe:2.3:o:suse:linux_enterprise_server:10:sp1:*:*:*:*:*:*
suse linux_enterprise_software_development_kit 10 cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp1:*:*:*:*:*:*
suse linux_enterprise_software_development_kit 10 cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp2:*:*:*:*:*:*

CVE-2008-5021 の参考情報

URL タグ
http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00004.html Mailing List Third Party Advisory
http://secunia.com/advisories/32684 Broken Link Third Party Advisory
http://secunia.com/advisories/32693 Broken Link Third Party Advisory
http://secunia.com/advisories/32694 Broken Link Third Party Advisory
http://secunia.com/advisories/32695 Broken Link Third Party Advisory
http://secunia.com/advisories/32713 Broken Link Third Party Advisory
http://secunia.com/advisories/32714 Broken Link Third Party Advisory
http://secunia.com/advisories/32715 Broken Link Third Party Advisory
http://secunia.com/advisories/32721 Broken Link Third Party Advisory
http://secunia.com/advisories/32778 Broken Link Third Party Advisory
http://secunia.com/advisories/32798 Broken Link Third Party Advisory
http://secunia.com/advisories/32845 Broken Link Third Party Advisory
http://secunia.com/advisories/32853 Broken Link Third Party Advisory
http://secunia.com/advisories/33433 Broken Link Third Party Advisory
http://secunia.com/advisories/33434 Broken Link Third Party Advisory
http://secunia.com/advisories/34501 Broken Link Third Party Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1 Broken Link
http://ubuntu.com/usn/usn-667-1 Third Party Advisory
http://www.debian.org/security/2008/dsa-1669 Mailing List Third Party Advisory
http://www.debian.org/security/2008/dsa-1671 Mailing List Third Party Advisory
http://www.debian.org/security/2009/dsa-1696 Mailing List Third Party Advisory
http://www.debian.org/security/2009/dsa-1697 Mailing List Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:228 Broken Link Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:230 Broken Link Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:235 Broken Link Third Party Advisory
http://www.mozilla.org/security/announce/2008/mfsa2008-55.html Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2008-0976.html Broken Link Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0977.html Broken Link Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0978.html Broken Link Third Party Advisory
http://www.securityfocus.com/bid/32281 Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id?1021186 Broken Link Third Party Advisory VDB Entry
http://www.us-cert.gov/cas/techalerts/TA08-319A.html Third Party Advisory US Government Resource
http://www.vupen.com/english/advisories/2008/3146 Broken Link Third Party Advisory
http://www.vupen.com/english/advisories/2009/0977 Broken Link Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=460002 Issue Tracking Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9642 Broken Link Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00366.html Mailing List Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00385.html Mailing List Third Party Advisory
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