CVE-2024-27273
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIBM AIX's Unix domain (AIX 7.2, 7.3, VIOS 3.1, and VIOS 4.1) datagram socket implementation could potentially expose applications using Unix domain datagram sockets with SO_PEERID operation and may lead to privilege escalation. IBM X-Force ID: 284903.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceIBM AIX contains a vulnerability in its Unix domain datagram socket implementation where the SO_PEERID socket operation may improperly expose or allow manipulation of peer process credentials. This could enable a local attacker to escalate privileges by spoofing or manipulating the peer identity information returned by the socket operation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 3.1= 4.1= 7.2= 7.3CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check AIX or VIOS versionRun 'oslevel -s' on AIX or 'ioslevel' on VIOS to get the exact version numberAffected if The version is exactly 7.2.x or 7.3.x for AIX, or exactly 3.1.x or 4.1.x for VIOS
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Identify processes using Unix domain datagram socketsUse 'netstat -Aan' or 'ss -x' to list Unix domain sockets and identify datagram (dgram) type sockets. Filter for socket type SOCK_DGRAMAffected if Any datagram Unix domain sockets are in use on the system
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Detect SO_PEERID socket option usageReview application source code or use 'procwatch' or 'truss' to trace socket-related system calls (getsockopt with SO_PEERID) in running processesAffected if Applications or processes are actively using the SO_PEERID socket option on Unix domain sockets
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Check for privilege escalation indicatorsReview system audit logs and process accounting for unusual SO_PEERID calls or credential manipulation attempts using 'auditpr' or system logs in /var/admAffected if Any anomalous SO_PEERID calls or unauthorized credential changes are observed in logs
The system is affected if it runs AIX 7.2/7.3 or VIOS 3.1/4.1 and uses Unix domain datagram sockets with the SO_PEERID socket option, as the vulnerability lies in the OS socket implementation for these specific versions.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply IBM's interim fix (APAR) for this vulnerability to affected AIX 7.2, 7.3, VIOS 3.1, and VIOS 4.1 systems. IBM X-Force ID 284903 corresponds to the official patch. Verify that Unix domain datagram sockets using SO_PEERID operate correctly after patching.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-27273 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-27273 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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