Local pmcd crash via misbounded value offset
Published Sep 19, 2024 · Updated Nov 20, 2025
Out-of-bounds write in Performance Co-Pilot before 6.3.1 allows local users to crash pmcd through a crafted metric-store PDU. __pmDecodeValueSet compares a 32-bit-word vindex against a byte-length limit, then __ntohpmValueBlock swaps data beyond the packet buffer. Store operations require a locally permitted connection; successful triggering corrupts the heap and can terminate or alter the daemon.
Summary
What happened
Out-of-bounds write in Performance Co-Pilot before 6.3.1 allows local users to crash pmcd through a crafted metric-store PDU. __pmDecodeValueSet compares a 32-bit-word vindex against a byte-length limit, then __ntohpmValueBlock swaps data beyond the packet buffer. Store operations require a locally permitted connection; successful triggering corrupts the heap and can terminate or alter the daemon.
The record
- CVE
- CVE-2024-45769
- Published
- Sep 19, 2024
- Updated
- Nov 20, 2025
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 8.6 Telecommunications Update Service
- Classifications
- CWE-787, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 19, 2024CVE publishedPublication date reported by the CVE source.
- Nov 20, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- pcp-decode-value-set-out-of-bound-write reproducerfunctional · demonstrated
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Technologies
Your stack
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Your stack
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