CVE-2007-1321

Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a heap-based buffer overflow via certain register values that bypass sanity checks, aka QEMU NE2000 "receive" integer signedness error. NOTE: this identifier was inadvertently used by some sources to cover multiple issues that were labeled "NE2000 network driver and the socket code," but separate identifiers have been created for the individual vulnerabilities since there are sometimes different fixes; see CVE-2007-5729 and CVE-2007-5730.

公開: 2007-10-30 最終更新: 2026-06-16 Assigner: [email protected] ソース: [email protected]

総合評価: CVE-2007-1321 は中リスク(42/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.46%、36 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-2007-1321 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 0.04% 0.46% +0.42%
2 2025-03-30 0.05% 0.04% -0.01%
3 2025-03-29 0.05%

EPSS の全履歴 (全 7 件)

CVE-2007-1321 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
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C クリックして展開
アクセス経路 (AV:L)
対象ホストにログインするなど、ローカルからの操作が前提。
アクセスの複雑さ (AC:L)
手順が短く、再現性が高い。
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。
3.9 10.0 [email protected]

CVE-2007-1321 の弱点分類(列挙)

CVE-2007-1321 の OS トラッカー

vendor priority summary link
debian not yet assigned CVE-2007-1321 not yet assigned priority: Debian including 1 source packages (qemu), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2007-1321
redhat low https://access.redhat.com/security/cve/CVE-2007-1321
ubuntu medium CVE-2007-1321 medium priority: Ubuntu including 4 source packages (kvm, qemu, qemu-kvm, xen-3.1), 31 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): DNE 11, released 7, not-affected 6, ignored 5, needed 1, needs-triage 1. https://ubuntu.com/security/CVE-2007-1321

CVE-2007-1321 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
qemu qemu 0.8.2 cpe:2.3:a:qemu:qemu:0.8.2:*:*:*:*:*:*:*
fedoraproject fedora 7 cpe:2.3:o:fedoraproject:fedora:7:*:*:*:*:*:*:*
fedoraproject fedora_core 6 cpe:2.3:o:fedoraproject:fedora_core:6:*:*:*:*:*:*:*
debian debian_linux 3.1 cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*
debian debian_linux 4.0 cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*

CVE-2007-1321 の参考情報

URL タグ
http://osvdb.org/35495 Broken Link
http://secunia.com/advisories/25073 Third Party Advisory
http://secunia.com/advisories/25095 Third Party Advisory
http://secunia.com/advisories/27047 Third Party Advisory
http://secunia.com/advisories/27072 Third Party Advisory
http://secunia.com/advisories/27103 Third Party Advisory
http://secunia.com/advisories/27486 Third Party Advisory
http://secunia.com/advisories/29129 Third Party Advisory
http://securitytracker.com/id?1018761 Third Party Advisory VDB Entry
http://taviso.decsystem.org/virtsec.pdf Technical Description Third Party Advisory
http://www.attrition.org/pipermail/vim/2007-October/001842.html Third Party Advisory
http://www.debian.org/security/2007/dsa-1284 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2007:203 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:162 Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2007-0323.html Third Party Advisory
http://www.securityfocus.com/bid/23731 Third Party Advisory VDB Entry
http://www.vupen.com/english/advisories/2007/1597 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9302 Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2007-November/msg00004.html Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00030.html Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00082.html Third Party Advisory
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