CVE-2020-24977 medium CVSS 6.5

Out-of-Bounds Read in Oracle Http Server (CVE-2020-24977)

Summary

Vulnerability in Oracle Http Server (CVE-2020-24977). Risk of unauthorized operations or information disclosure.

Original description

The description as published by the source.

GNOME project libxml2 v2.9.10 and earlier have a global Buffer Overflow vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 8e7c20a1 (20910-GITv2.9.10-103-g8e7c20a1).

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2020-24977 has been found in Oracle Http Server.
Risk of unauthorized operations or information disclosure. CVSS score: 6.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Oracle Http Server CVE-2020-24977" on the vendor's site.

CVE-2020-24977 (Oracle Http Server) — CWE-125 / CVSS v3 6.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

Out-of-bounds read (CWE-125) exists in Oracle Http Server.

📍 Affected scope

Check the vendor advisory for the affected versions of Oracle Http Server.

🔥 Severity

Severity: Medium (CVSS 6.5/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposure identify
```
Audit SBOM/dependencies for affected components.
```
資産台帳・SBOM・依存マニフェストで Oracle Http Server を使っているサービスとバージョンを洗い出す。
2
Post-deployment verification verify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Fix status by distribution

Fixed packages published by each distribution for this CVE

Alpine Linux ALPINE-CVE-2020-24977 libxml2 Fixed in: 2.9.9-r4

Summary

Original description

Auto-generated summary

Response actions

Fix status by distribution

References