CVE-2023-23931
Cipher.update_into can corrupt memory in pyca cryptography
Public exploit available. Not confirmed exploited in the wild yet. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
SCALANCE XCM-/XRM-300 before V2.4 is affected by multiple vulnerabilities. Siemens has released an update for SCALANCE X-300 and recommends to update to the latest version.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
1 source with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
1.3% chance of exploitation activity in the next 30 days, which ranks it in the 69th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
The patch came 123 days before any public exploit.
- OpenVAS check added
- Public exploit / PoCsource: github-poc
- Patch availablerecord updated
- Publishedweakness classified
Affected products
- Red Hat Enterprise LinuxOperating Systems / linux-distro
- Red Hat Software CollectionsOperating Systems / linux-distro
- Red Hat QuayOperating Systems / linux-distro
- Red Hat OpenShift Data Science (RHODS)Operating Systems / linux-distro
- Red Hat Update Infrastructure for Cloud ProvidersOperating Systems / linux-distro
- Red Hat DiscoveryOperating Systems / linux-distro
- Red Hat Ansible Automation PlatformOperating Systems / linux-distro
And 10 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Scored 4.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity LowData modification is possible but limited in scope or consequence
- Availability LowReduced performance or intermittent disruption of service
Weaknesses
Sources
References in the record
- cert-portal.siemens.com/productcert/csaf/ssa-806742.json
- cert-portal.siemens.com/productcert/html/ssa-806742.html
- cert-portal.siemens.com/productcert/pdf/ssa-806742.pdf
And 37 more references. See all after sign-in
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