Red HatCVE-2026-68742
Red Hat SSSD: out-of-bounds read
Medium5.5CVE-2026-68742 · Published Aug 3, 2026 · updated Aug 31, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 6 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
| Red Hat OpenShift Container Platform 4 Product | all versions | No fix yet |
| all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-125
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 3 | Red Hat Enterprise Linux: race condition | Medium4.4 | No fix yet |
| Aug 3 | Red Hat 389 Directory Server: improper authentication | Medium5.4 | No fix yet |
| Aug 3 | Red Hat GNU tar.: link following | Medium4.4 | No fix yet |
| Aug 3 | Red Hat GIMP: stack buffer overflow | Medium5.5 | No fix yet |
| Aug 3 | Red Hat GIMP. A remote attacker: out-of-bounds write | Medium5.5 | No fix yet |
| Aug 2 | Red Hat user creation: information disclosure | Medium6.6 | No fix yet |