Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Fixed packages 2

Vulnerabilities 1

• Medium 5.3
  CVE-2026-85977

  Libtirpc: libtirpc: denial of service via unbounded memory allocation during portmapper response decoding

  A flaw was found in libtirpc. A remote attacker can exploit this vulnerability by sending specially crafted PMAPPROC_DUMP replies to a client application that uses the pmap_getmaps() function against an attacker-controlled host. This unbounded decoding can le…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu
  Oct 16, 2026

References

• article
  https://images.redhat.com/
• report
  https://access.redhat.com/security/cve/CVE-2026-85977
• article
  https://access.redhat.com/security/updates/classification/
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_80360.json
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2478979
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-85977
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-85977