The pduread function in pdu.c in libpcp in Performance Co-Pilot (PCP) before 3.6.5 does…
Priority LOW 29Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The pduread function in pdu.c in libpcp in Performance Co-Pilot (PCP) before 3.6.5 does not properly time out connections, which allows remote attackers to cause a denial of service (pmcd hang) by sending individual bytes of a PDU separately, related to an "event-driven programming flaw."
Why it matters now
EPSS 0.03361 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sgi:performance_co-pilot:*:*:*:*:*:*:*:* | up to 3.6.4 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.1:*:*:*:*:*:*:* | 2.1.1 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.2:*:*:*:*:*:*:* | 2.1.2 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.3:*:*:*:*:*:*:* | 2.1.3 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.4:*:*:*:*:*:*:* | 2.1.4 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.5:*:*:*:*:*:*:* | 2.1.5 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.6:*:*:*:*:*:*:* | 2.1.6 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.7:*:*:*:*:*:*:* | 2.1.7 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.8:*:*:*:*:*:*:* | 2.1.8 | Vulnerable | Sgi |
| cpe:2.3:a:sgi:performance_co-pilot:2.1.9:*:*:*:*:*:*:* | 2.1.9 | Vulnerable | Sgi |
- cpe:2.3:a:sgi:performance_co-pilot:*:*:*:*:*:*:*:* Versions up to 3.6.4 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.2:*:*:*:*:*:*:* Versions 2.1.2 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.3:*:*:*:*:*:*:* Versions 2.1.3 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.4:*:*:*:*:*:*:* Versions 2.1.4 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.5:*:*:*:*:*:*:* Versions 2.1.5 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.6:*:*:*:*:*:*:* Versions 2.1.6 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.7:*:*:*:*:*:*:* Versions 2.1.7 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.8:*:*:*:*:*:*:* Versions 2.1.8 Vulnerable ·Sgi
- cpe:2.3:a:sgi:performance_co-pilot:2.1.9:*:*:*:*:*:*:* Versions 2.1.9 Vulnerable ·Sgi
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2012-3421
- 2026-10-03 Alias added: GHSA-5m4g-m6fj-7r63
References
Advisory 7
Other 4
- http://oss.sgi.com/cgi-bin/gitweb.cgi?p=pcp/pcp.git%3Ba=blob%3Bf=CHANGELOG%3Bh=16c9cbb2f61d909487ea1c3171f4ab33e5648ac5%3Bhb=fe51067ae869a4d59f350ac319b09edcb77ac8e6
- [oss-security] 20120816 pcp: Multiple security flaws
- http://oss.sgi.com/cgi-bin/gitweb.cgi?p=pcp/pcp.git%3Ba=commit%3Bh=9ba85dca940de976176ce196fd5e3c4170936354
- https://bugzilla.redhat.com/show_bug.cgi?id=841706
More Sgi Performance Co-pilot vulnerabilities
- TI-2001-00786 The pmpost program in Performance Co-Pilot (PCP) before 2.2.1-3 allows a local user to… CVSS 2.0HIGH 7.2
- TI-2012-02947 libpcp in Performance Co-Pilot (PCP) before 3.6.5 allows remote attackers to cause a… CVSS 2.0MEDIUM 5.0
- TI-2023-06321 Pcp: unsafe use of directories allows pcp to root privilege escalation CVSS 3.1MEDIUM 6.7
- TI-2012-02949 Multiple memory leaks in Performance Co-Pilot (PCP) before 3.6.5 allow remote attackers… CVSS 2.0MEDIUM 5.0
- TI-2012-02948 Performance Co-Pilot (PCP) before 3.6.5 exports some of the /proc file system, which… CVSS 2.0MEDIUM 5.0
- TI-2012-04648 The (1) pcmd and (2) pmlogger init scripts in Performance Co-Pilot (PCP) before 3.6.10… CVSS 2.0LOW 2.1
Sources
- CVE-2012-3421 · CVE Program
- CVE-2012-3421 · NVD
- FIRST EPSS
- GHSA-5m4g-m6fj-7r63 · GitHub Advisory Database · CC BY 4.0
- CVE-2012-3421 · Red Hat security data · CC BY 4.0
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