Vulnerability in Vim (CVE-2023-48233)
Summary
Vulnerability in Vim (CVE-2023-48233). Risk of unauthorized operations or information disclosure. Exploitable via ac6378773.
Original description
The description as published by the source.
Vim is an open source command line text editor. If the count after the :s command is larger than what fits into a (signed) long variable, abort with e_value_too_large. Impact is low, user interaction is required and a crash may not even happen in all situations. This issue has been addressed in commit ac6378773 which has been included in release version 9.0.2108. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: NIST National Vulnerability Database NVD
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-2023-48233 has been found in Vim.
Attackers can target a specific entry point like ac6378773 over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 2.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Vim CVE-2023-48233" on the vendor's site.
CVE-2023-48233 (Vim) — CWE-190 / CVSS v3 2.8
Attack vector: local
Attack surface: ac6378773
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.
A vulnerability (CWE-190) exists in Vim. Attackers reach the vulnerable code path via ac6378773.
Check the vendor advisory for the affected versions of Vim. Attack surface: ac6378773.
Severity: Low (CVSS 2.8/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Vim' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'Vim' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
Vimを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-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
- Debian DEBIAN-CVE-2023-48233 vim
References
- advisory lists.fedoraproject.org
- advisory lists.fedoraproject.org
- advisory lists.fedoraproject.org
- advisory security.netapp.com
- mailing openwall.com
- patch github.com
- patch github.com