CVE-2011-3193

Heap-based buffer overflow in the Lookup_MarkMarkPos function in the HarfBuzz module (harfbuzz-gpos.c), as used by Qt before 4.7.4 and Pango, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted font file.

公開: 2012-06-15 最終更新: 2026-06-16 Assigner: [email protected] ソース: [email protected]

総合評価: CVE-2011-3193 は高リスク(65/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 7.54%、94 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-2011-3193 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 12.65% 7.54% -5.11%
2 2026-06-13 9.73% 12.65% +2.93%
3 2026-05-24 9.73%

EPSS の全履歴 (全 19 件)

CVE-2011-3193 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-2011-3193 の弱点分類(列挙)

CVE-2011-3193 の OS トラッカー

vendor priority summary link
debian not yet assigned CVE-2011-3193 not yet assigned priority: Debian including 1 source packages (pango1.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-3193
gentoo normal CVE-2011-3193: 1 GLSA(s) (201311-14), 2 atom(s) (dev-qt/qtcore, dev-qt/qtgui); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-3193
redhat medium https://access.redhat.com/security/cve/CVE-2011-3193
ubuntu low CVE-2011-3193 low priority: Ubuntu including 1 source packages (qt4-x11), 7 status rows across 7 suites (hardy, lucid, maverick, natty, oneiric, precise, upstream): released 3, ignored 2, not-affected 2. https://ubuntu.com/security/CVE-2011-3193

CVE-2011-3193 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
gnome pango < 1.25.1 cpe:2.3:a:gnome:pango:*:*:*:*:*:*:*:*
qt qt < 4.7.4 cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*
canonical ubuntu_linux 10.04 cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
canonical ubuntu_linux 11.04 cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 4.0 cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 5.0 cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_eus 6.1 cpe:2.3:o:redhat:enterprise_linux_eus:6.1:*:*:*:*:*:*:*
redhat enterprise_linux_server 4.0 cpe:2.3:o:redhat:enterprise_linux_server:4.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 5.0 cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 4.0 cpe:2.3:o:redhat:enterprise_linux_workstation:4.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 5.0 cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
opensuse opensuse 11.3 cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*
opensuse opensuse 11.4 cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*

CVE-2011-3193 の参考情報

URL タグ
http://cgit.freedesktop.org/harfbuzz.old/commit/?id=81c8ef785b079980ad5b46be4fe7c7bf156dbf65 Patch Third Party Advisory
http://cgit.freedesktop.org/harfbuzz/commit/src/harfbuzz-gpos.c?id=da2c52abcd75d46929b34cad55c4fb2c8892bc08 Patch Third Party Advisory
http://git.gnome.org/browse/pango/commit/pango/opentype/harfbuzz-gpos.c?id=a7a715480db66148b1f487528887508a7991dcd0 Patch Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2011-10/msg00007.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2011-10/msg00008.html Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2011-1323.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2011-1324.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2011-1325.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2011-1326.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2011-1327.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2011-1328.html Third Party Advisory
http://secunia.com/advisories/41537 Third Party Advisory
http://secunia.com/advisories/46117 Third Party Advisory
http://secunia.com/advisories/46118 Third Party Advisory
http://secunia.com/advisories/46119 Third Party Advisory
http://secunia.com/advisories/46128 Third Party Advisory
http://secunia.com/advisories/46371 Third Party Advisory
http://secunia.com/advisories/46410 Third Party Advisory
http://secunia.com/advisories/49895 Third Party Advisory
http://www.openwall.com/lists/oss-security/2011/08/22/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2011/08/24/8 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2011/08/25/1 Mailing List Third Party Advisory
http://www.osvdb.org/75652 Broken Link
http://www.securityfocus.com/bid/49723 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-1504-1 Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/69991 Third Party Advisory VDB Entry
https://hermes.opensuse.org/messages/12056605 Broken Link
https://qt.gitorious.org/qt/qt/commit/9ae6f2f9a57f0c3096d5785913e437953fa6775c Broken Link
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