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UBUNTU-CVE-2016-4487
Vulnerability in gdb (UBUNTU-CVE-2016-4487)
Summary
vulnerability in gdb (UBUNTU-CVE-2016-4487). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `7.7.1-0ubuntu5~14.04.3` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **UBUNTU-CVE-2016-4487** has been found in gdb.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade gdb to **7.7.1-0ubuntu5~14.04.3** or later.
If unsure, ask your IT team or search "gdb UBUNTU-CVE-2016-4487" on the vendor's site.
UBUNTU-CVE-2016-4487 (gdb) —
Attack vector: local / unauthenticated
Patched: `7.7.1-0ubuntu5~14.04.3` — 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 gdb.
📍 Affected scope
gdb — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **7.7.1-0ubuntu5~14.04.3**.
🛡️ 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 'gdb' .` 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 'gdb' . | 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 `gdb` 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 gdb to 7.7.1-0ubuntu5~14.04.3ステージング環境で 7.7.1-0ubuntu5~14.04.3 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。
-
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
Ubuntu:14.04:LTS
gdb
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.7.1-0ubuntu5~14.04.3"}]}]
Ubuntu:14.04:LTS
libiberty
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20131116-1ubuntu0.2"}]}]
Ubuntu:14.04:LTS
valgrind
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.10.1-1ubuntu3~14.5"}]}]
Ubuntu:Pro:14.04:LTS
binutils
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS
gdb
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.11.1-0ubuntu1~16.5"}]}]
Ubuntu:16.04:LTS
libiberty
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20160215-1ubuntu0.2"}]}]
Ubuntu:16.04:LTS
valgrind
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.11.0-1ubuntu4.2"}]}]
Ubuntu:Pro:16.04:LTS
binutils
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26.1-1ubuntu1~16.04.8+esm1"}]}]
Ubuntu:16.04:LTS
binutils-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS
gcc-arm-none-eabi
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS
gcc-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS
gccxml
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS
ht
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS
nescc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS
sdcc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
binutils-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
gcc-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
nescc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
sdcc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
binutils-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
gcc-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
nescc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
binutils-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
gcc-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
nescc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
binutils-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
gcc-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10
binutils-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10
gcc-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
binutils-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
gcc-h8300-hms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory https://ubuntu.com/security/notices/USN-3337-1
- advisory https://ubuntu.com/security/notices/USN-3368-1
- advisory https://ubuntu.com/security/notices/USN-3367-1
- advisory https://ubuntu.com/security/notices/USN-4336-2
- report https://ubuntu.com/security/CVE-2016-4487
- report https://gcc.gnu.org/ml/gcc-patches/2016-03/msg01687.html
- report https://www.cve.org/CVERecord?id=CVE-2016-4487