CVE-2006-4340

Mozilla Network Security Service (NSS) library before 3.11.3, as used in Mozilla Firefox before 1.5.0.7, Thunderbird before 1.5.0.7, and SeaMonkey before 1.0.5, when using an RSA key with exponent 3, does not properly handle extra data in a signature, which allows remote attackers to forge signatures for SSL/TLS and email certificates, a similar vulnerability to CVE-2006-4339. NOTE: on 20061107, Mozilla released an advisory stating that these versions were not completely patched by MFSA2006-60. The newer fixes for 1.5.0.7 are covered by CVE-2006-5462.

公開: 2006-09-15 最終更新: 2026-06-16 Assigner: [email protected] ソース: [email protected]

総合評価: CVE-2006-4340 は中リスク(43.3/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 2.15%、80 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。

CVE-2006-4340 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 2026-06-15 2.70% 2.15% -0.55%
2 2026-04-12 3.09% 2.70% -0.39%
3 2026-04-04 3.09%

EPSS の全履歴 (全 24 件)

CVE-2006-4340 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
4.0 2.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:N 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:H)
ごく限られた構成・タイミングでしか成立しない。
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:P)
機密性は部分的に損なわれる。
完全性への影響 (I:P)
完全性は部分的に損なわれる。
可用性への影響 (A:N)
可用性は損なわれない。
4.9 4.9 [email protected]

CVE-2006-4340 の弱点分類(列挙)

CVE-2006-4340 の OS トラッカー

vendor priority summary link
debian high CVE-2006-4340 high priority: Debian including 2 source packages (firefox, thunderbird), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2006-4340
gentoo normal CVE-2006-4340: 3 GLSA(s) (200609-19, 200610-01, 200610-06), 5 atom(s) (dev-libs/nss, mail-client/mozilla-thunderbird, mail-client/mozilla-thunderbird-bin, www-client/mozilla-firefox, www-client/mozilla-firefox-bin); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-4340
redhat high https://access.redhat.com/security/cve/CVE-2006-4340
ubuntu medium CVE-2006-4340 medium priority: Ubuntu including 6 source packages (firefox, firefox-granparadiso, lightning-sunbird, midbrowser, mozilla-thunderbird, xulrunner), 24 status rows across 4 suites (dapper, edgy, feisty, upstream): DNE 10, needs-triage 6, released 5, not-affected 2, ignored 1. https://ubuntu.com/security/CVE-2006-4340

CVE-2006-4340 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 <= 1.5.0.6 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozilla network_security_services <= 3.11.2 cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*
mozilla seamonkey <= 1.0.4 cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
mozilla thunderbird <= 1.5.0.6 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

CVE-2006-4340 の参考情報

URL タグ
ftp://patches.sgi.com/support/free/security/advisories/20060901-01-P.asc
http://secunia.com/advisories/21903 Vendor Advisory
http://secunia.com/advisories/21906 Patch Vendor Advisory
http://secunia.com/advisories/21915 Vendor Advisory
http://secunia.com/advisories/21916 Vendor Advisory
http://secunia.com/advisories/21939 Vendor Advisory
http://secunia.com/advisories/21940 Vendor Advisory
http://secunia.com/advisories/21949 Patch Vendor Advisory
http://secunia.com/advisories/21950 Vendor Advisory
http://secunia.com/advisories/22001 Vendor Advisory
http://secunia.com/advisories/22025 Vendor Advisory
http://secunia.com/advisories/22036 Vendor Advisory
http://secunia.com/advisories/22044
http://secunia.com/advisories/22055 Vendor Advisory
http://secunia.com/advisories/22056
http://secunia.com/advisories/22066
http://secunia.com/advisories/22074 Vendor Advisory
http://secunia.com/advisories/22088 Vendor Advisory
http://secunia.com/advisories/22195
http://secunia.com/advisories/22210 Vendor Advisory
http://secunia.com/advisories/22226 Vendor Advisory
http://secunia.com/advisories/22247 Vendor Advisory
http://secunia.com/advisories/22274 Vendor Advisory
http://secunia.com/advisories/22299 Vendor Advisory
http://secunia.com/advisories/22342 Vendor Advisory
http://secunia.com/advisories/22422 Vendor Advisory
http://secunia.com/advisories/22446 Vendor Advisory
http://secunia.com/advisories/22849
http://secunia.com/advisories/22992
http://secunia.com/advisories/23883
http://secunia.com/advisories/24711
http://security.gentoo.org/glsa/glsa-200609-19.xml
http://security.gentoo.org/glsa/glsa-200610-01.xml
http://securitytracker.com/id?1016858
http://securitytracker.com/id?1016859
http://securitytracker.com/id?1016860
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102648-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102781-1
http://support.avaya.com/elmodocs2/security/ASA-2006-224.htm
http://support.avaya.com/elmodocs2/security/ASA-2006-250.htm
http://www.debian.org/security/2006/dsa-1192
http://www.debian.org/security/2006/dsa-1210
http://www.gentoo.org/security/en/glsa/glsa-200610-06.xml
http://www.imc.org/ietf-openpgp/mail-archive/msg14307.html
http://www.mandriva.com/security/advisories?name=MDKSA-2006:168
http://www.mandriva.com/security/advisories?name=MDKSA-2006:169
http://www.matasano.com/log/469/many-rsa-signatures-may-be-forgeable-in-openssl-and-elsewhere/
http://www.mozilla.org/security/announce/2006/mfsa2006-60.html
http://www.mozilla.org/security/announce/2006/mfsa2006-66.html
http://www.novell.com/linux/security/advisories/2006_54_mozilla.html
http://www.novell.com/linux/security/advisories/2006_55_ssl.html
http://www.redhat.com/support/errata/RHSA-2006-0675.html Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2006-0676.html Patch Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2006-0677.html Patch Vendor Advisory
http://www.securityfocus.com/archive/1/446140/100/0/threaded
http://www.ubuntu.com/usn/usn-350-1
http://www.ubuntu.com/usn/usn-351-1
http://www.ubuntu.com/usn/usn-352-1
http://www.ubuntu.com/usn/usn-354-1
http://www.ubuntu.com/usn/usn-361-1
http://www.us-cert.gov/cas/techalerts/TA06-312A.html US Government Resource
http://www.us.debian.org/security/2006/dsa-1191
http://www.vupen.com/english/advisories/2006/3617
http://www.vupen.com/english/advisories/2006/3622
http://www.vupen.com/english/advisories/2006/3748
http://www.vupen.com/english/advisories/2006/3899
http://www.vupen.com/english/advisories/2007/0293
http://www.vupen.com/english/advisories/2007/1198
http://www.vupen.com/english/advisories/2008/0083
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=c00771742
https://exchange.xforce.ibmcloud.com/vulnerabilities/30098
https://issues.rpath.com/browse/RPL-640
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11007
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