Integer overflow in the exif_process_IFD_TAG function in exif.c in the exif extension in PHP 5.4.0beta2 on 32-bit platforms allows remote attackers to read the contents of arbitrary memory locations or cause a denial of service via a crafted offset_val value in an EXIF header in a JPEG file, a different vulnerability than CVE-2011-0708.
総合評価: CVE-2011-4566 は悪用リスクが高い（74/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 36.44%、97 パーセンタイル） 根拠: 公開エクスプロイトが 1 件参照されています（Exploit-DB）。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-05-31 | 37.10% | 36.44% | -0.66% |
| 2 | 2026-03-05 | 38.91% | 37.10% | -1.81% |
| 3 | 2026-02-20 | — | 38.91% | — |
EPSS の全履歴 （全 25 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 |
|---|---|---|---|---|---|---|
| 6.4 | 2.0 | MEDIUM |
|
10.0 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
high | CVE-2011-4566: 1 GLSA(s) (201209-03), 1 atom(s) (dev-lang/php); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-4566 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2011-4566 |
suse
|
medium | CVE-2011-4566 severity moderate: SUSE including 581 source package names (apache2-mod_php5-5.2.14-0.7.30.34.1, apache2-mod_php5-5.6.28-1.1, …), 882 product×package rows across 24 product lines (SUSE Enterprise Storage 7.1, SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS, … (24 product lines)): Known Not Affected 456, Fixed 426. | https://www.suse.com/security/cve/CVE-2011-4566/ |
ubuntu
|
medium | CVE-2011-4566 medium priority: Ubuntu including 1 source packages (php5), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 5, needs-triage 1. | https://ubuntu.com/security/CVE-2011-4566 |
: Per: https://bugs.php.net/bug.php?id=60150 'The bug is only present in 32 bits version.'
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| php | php | >= 5.3.0, < 5.3.9 | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* |
| php | php | 5.4.0 | cpe:2.3:a:php:php:5.4.0:beta2:*:*:*:*:*:* |
| debian | debian_linux | 5.0 | cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* |
| debian | debian_linux | 6.0 | cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 8.04 | cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* |
| canonical | ubuntu_linux | 10.04 | cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* |
| canonical | ubuntu_linux | 10.10 | cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 11.04 | cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 11.10 | cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://lists.apple.com/archives/security-announce/2012/May/msg00001.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html | Mailing List Third Party Advisory |
| http://rhn.redhat.com/errata/RHSA-2012-0071.html | Third Party Advisory |
| http://secunia.com/advisories/47253 | Third Party Advisory |
| http://secunia.com/advisories/48668 | Third Party Advisory |
| http://support.apple.com/kb/HT5281 | Third Party Advisory |
| http://www.debian.org/security/2012/dsa-2399 | Third Party Advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2011:197 | Third Party Advisory |
| http://www.redhat.com/support/errata/RHSA-2012-0019.html | Third Party Advisory |
| http://www.securityfocus.com/bid/50907 | Third Party Advisory VDB Entry |
| https://bugs.php.net/bug.php?id=60150 | Exploit Vendor Advisory |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/71612 | Third Party Advisory VDB Entry |
| https://www.ubuntu.com/usn/USN-1307-1/ | Third Party Advisory |