Buffer overflow in the atodn function in Openswan before 2.6.39, when Opportunistic Encryption is enabled and an RSA key is being used, allows remote attackers to cause a denial of service (pluto IKE daemon crash) and possibly execute arbitrary code via crafted DNS TXT records. NOTE: this might be the same vulnerability as CVE-2013-2052 and CVE-2013-2054.
総合評価: CVE-2013-2053 は中リスク（56.6/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 2.41%、82 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。
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 | 1.65% | 2.41% | +0.76% |
| 2 | 2025-03-30 | 2.04% | 1.65% | -0.40% |
| 3 | 2025-03-29 | — | 2.04% | — |
EPSS の全履歴 （全 10 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 |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2013-2053: 1 GLSA(s) (201401-09), 1 atom(s) (net-misc/openswan); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-2053 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2013-2053 |
ubuntu
|
medium | CVE-2013-2053 medium priority: Ubuntu including 1 source packages (openswan), 17 status rows across 17 suites (artful, bionic, cosmic, disco, lucid, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 11, ignored 5, needs-triage 1. | https://ubuntu.com/security/CVE-2013-2053 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| xelerance | openswan | <= 2.6.38 | cpe:2.3:a:xelerance:openswan:*:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.01 | cpe:2.3:a:xelerance:openswan:2.6.01:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.02 | cpe:2.3:a:xelerance:openswan:2.6.02:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.03 | cpe:2.3:a:xelerance:openswan:2.6.03:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.04 | cpe:2.3:a:xelerance:openswan:2.6.04:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.05 | cpe:2.3:a:xelerance:openswan:2.6.05:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.06 | cpe:2.3:a:xelerance:openswan:2.6.06:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.07 | cpe:2.3:a:xelerance:openswan:2.6.07:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.08 | cpe:2.3:a:xelerance:openswan:2.6.08:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.09 | cpe:2.3:a:xelerance:openswan:2.6.09:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.10 | cpe:2.3:a:xelerance:openswan:2.6.10:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.11 | cpe:2.3:a:xelerance:openswan:2.6.11:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.12 | cpe:2.3:a:xelerance:openswan:2.6.12:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.13 | cpe:2.3:a:xelerance:openswan:2.6.13:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.14 | cpe:2.3:a:xelerance:openswan:2.6.14:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.15 | cpe:2.3:a:xelerance:openswan:2.6.15:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.16 | cpe:2.3:a:xelerance:openswan:2.6.16:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.17 | cpe:2.3:a:xelerance:openswan:2.6.17:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.18 | cpe:2.3:a:xelerance:openswan:2.6.18:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.19 | cpe:2.3:a:xelerance:openswan:2.6.19:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.20 | cpe:2.3:a:xelerance:openswan:2.6.20:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.21 | cpe:2.3:a:xelerance:openswan:2.6.21:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.22 | cpe:2.3:a:xelerance:openswan:2.6.22:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.23 | cpe:2.3:a:xelerance:openswan:2.6.23:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.24 | cpe:2.3:a:xelerance:openswan:2.6.24:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.25 | cpe:2.3:a:xelerance:openswan:2.6.25:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.26 | cpe:2.3:a:xelerance:openswan:2.6.26:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.27 | cpe:2.3:a:xelerance:openswan:2.6.27:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.28 | cpe:2.3:a:xelerance:openswan:2.6.28:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.29 | cpe:2.3:a:xelerance:openswan:2.6.29:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.30 | cpe:2.3:a:xelerance:openswan:2.6.30:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.31 | cpe:2.3:a:xelerance:openswan:2.6.31:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.32 | cpe:2.3:a:xelerance:openswan:2.6.32:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.33 | cpe:2.3:a:xelerance:openswan:2.6.33:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.34 | cpe:2.3:a:xelerance:openswan:2.6.34:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.35 | cpe:2.3:a:xelerance:openswan:2.6.35:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.36 | cpe:2.3:a:xelerance:openswan:2.6.36:*:*:*:*:*:*:* |
| xelerance | openswan | 2.6.37 | cpe:2.3:a:xelerance:openswan:2.6.37:*:*:*:*:*:*:* |