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CLSA-2023-1687795384
Vulnerability in binutils (CLSA-2023-1687795384)
Summary
vulnerability in binutils (CLSA-2023-1687795384). Risk of unauthorized operations or information disclosure. Exploitable via ``the_bfd``. Mitigation: upgrade to `2.26.1-1ubuntu1~16.04.10+tuxcare.els6` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CLSA-2023-1687795384** has been found in binutils.
Attackers can target a specific entry point like ``the_bfd`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade binutils to **2.26.1-1ubuntu1~16.04.10+tuxcare.els6** or later.
If unsure, ask your IT team or search "binutils CLSA-2023-1687795384" on the vendor's site.
CLSA-2023-1687795384 (binutils) —
Attack surface: `the_bfd` / `asymbol`
Patched: `2.26.1-1ubuntu1~16.04.10+tuxcare.els6` — apply immediately
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
**A vulnerability** (unclassified) exists in binutils. Attackers reach the vulnerable code path via ``the_bfd`` without authentication.
📍 Affected scope
binutils — . Attack surface: `the_bfd` / `asymbol`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2.26.1-1ubuntu1~16.04.10+tuxcare.els6**.
🛡️ 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. Run `grep -r 'binutils' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'binutils' . | 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 `binutils` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade binutils to 2.26.1-1ubuntu1~16.04.10+tuxcare.els6ステージング環境で 2.26.1-1ubuntu1~16.04.10+tuxcare.els6 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
TuxCare:Ubuntu:16.04
binutils
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-aarch64-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-alpha-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-arm-linux-gnueabi
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-arm-linux-gnueabihf
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-dev
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-doc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-hppa-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-hppa64-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-m68k-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-mips-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-mips64-linux-gnuabi64
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-mips64el-linux-gnuabi64
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-mipsel-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-multiarch
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-multiarch-dev
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-powerpc-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-powerpc-linux-gnuspe
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-powerpc64-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-powerpc64le-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-s390x-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-sh4-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-source
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]
TuxCare:Ubuntu:16.04
binutils-sparc64-linux-gnu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.10+tuxcare.els6"}]}]