OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data right before. This is a use-after-free bug that impacts the entire cupsd process. The exact cause of this issue is the function `httpClose(con->http)` being called in `scheduler/client.c`. The problem is that httpClose always, provided its argument is not null, frees the pointer at the end of the call, only for cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function `cupsdAcceptClient` if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address (HostNameLookups Double is set in `cupsd.conf`) which fails to resolve, or if CUPS is compiled with TCP wrappers and the connection is refused by rules from `/etc/hosts.allow` and `/etc/hosts.deny`. Version 2.4.6 has a patch for this issue.
総合評価: CVE-2023-34241 は悪用リスクが高い（60.4/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 1.40%、69 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 | 2026-06-23 | 1.34% | 1.40% | +0.05% |
| 2 | 2026-06-15 | 0.06% | 1.34% | +1.29% |
| 3 | 2026-05-06 | — | 0.06% | — |
EPSS の全履歴 （全 18 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 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 7.1 | 3.1 | HIGH |
|
1.8 | 5.2 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2023-34241: 1 source package rows (cups); 36 state rows across 6 repos (3.17-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 1, open 35. | https://security.alpinelinux.org/vuln/CVE-2023-34241 |
debian
|
not yet assigned | CVE-2023-34241 not yet assigned priority: Debian including 1 source packages (cups), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-34241 |
gentoo
|
high | CVE-2023-34241: 1 GLSA(s) (202402-17), 1 atom(s) (net-print/cups); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-34241 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-34241 |
suse
|
high | CVE-2023-34241 severity important: SUSE including 304 source package names (6.0-baremetal:glibc-2.38-slfo.1.1_4.1, 6.0-base:glibc-2.38-slfo.1.1_4.1, …), 1002 product×package rows across 263 product lines (Container rancher/elemental-channel/sl-micro, Container suse/kiosk/firefox-esr, … (263 product lines)): Fixed 832, Known Affected 160, Known Not Affected 10. | https://www.suse.com/security/cve/CVE-2023-34241/ |
ubuntu
|
medium | CVE-2023-34241 medium priority: Ubuntu including 1 source packages (cups), 8 status rows across 8 suites (bionic, focal, jammy, kinetic, lunar, trusty, upstream, xenial): released 6, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2023-34241 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openprinting | cups | >= 2.2.0, < 2.4.6 | cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 37 | cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* |
| fedoraproject | fedora | 38 | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| apple | macos | < 11.7.9 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| apple | macos | >= 12.0.0, < 12.6.8 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| apple | macos | >= 13.0, < 13.5 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.openwall.com/lists/oss-security/2023/06/23/10 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2023/06/26/1 | Mailing List Third Party Advisory |
| https://github.com/OpenPrinting/cups/commit/9809947a959e18409dcf562a3466ef246cb90cb2 | Patch |
| https://github.com/OpenPrinting/cups/releases/tag/v2.4.6 | Release Notes |
| https://github.com/OpenPrinting/cups/security/advisories/GHSA-qjgh-5hcq-5f25 | Exploit Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2023/06/msg00038.html | Mailing List |
| https://lists.fedoraproject.org/archives/list/[email protected]/message/7I7DWGYGEMBNLZF5UQBMF3SONR37YUBN/ | Mailing List |
| https://lists.fedoraproject.org/archives/list/[email protected]/message/TBIYKDS3UG3W4Z7YOHTR2AWFNBRYPNYY/ | Mailing List Third Party Advisory |
| https://support.apple.com/kb/HT213843 | Third Party Advisory |
| https://support.apple.com/kb/HT213844 | Third Party Advisory |
| https://support.apple.com/kb/HT213845 | Third Party Advisory |