CVE-2026-68742
CVE-2026-68742: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2026-68742] NSS responder out-of-bounds read via unchecked addrlen in GETHOSTBYADDR
CVE-2026-68742Source published Source updated
A flaw was found in SSSD. The sss_nss_protocol_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service. This issue can only be triggered by a local attacker who can connect to the SSSD NSS responder unix socket and send crafted requests. The over-read bytes are used as a lookup key and are not returned to the client, so the impact is limited to denial of service. The sssd monitor may respawn the responder, but repeated crashes can lead to a persistent name-resolution outage for SSSD-managed users. Red Hat severity: Moderate — CVSS 5.5…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
2 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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