GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0.
総合評価: CVE-2023-25565 は中リスク(52.1/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 1.10%、61 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 | 0.45% | 1.10% | +0.65% |
| 2 | 2026-05-28 | 0.51% | 0.45% | -0.06% |
| 3 | 2026-05-26 | — | 0.51% | — |
EPSS の全履歴 (全 14 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-25565 not yet assigned priority: Debian including 1 source packages (gss-ntlmssp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2023-25565 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-25565 |
ubuntu
|
medium | CVE-2023-25565 medium priority: Ubuntu including 1 source packages (gss-ntlmssp), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 5, ignored 4, not-affected 4. | https://ubuntu.com/security/CVE-2023-25565 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| gss-ntlmssp_project | gss-ntlmssp | < 1.2.0 | cpe:2.3:a:gss-ntlmssp_project:gss-ntlmssp:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facee0f64 | Patch Third Party Advisory |
| https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 | Third Party Advisory |
| https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfg | Third Party Advisory |