Red Hat Security Advisory: buildah security update

Fixed packages 5

Vulnerabilities 2

• High 7.3
  CVE-2025-52881 Public exploit

  runc: LSM labels can be bypassed with malicious config using dummy procfs files

  runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with s…

  opencontainers runc zot kubescape Debian Ubuntu Azure Linux Alpine Wolfi Go
  Nov 6, 2025
• Medium 4.3
  CVE-2025-58183

  Unbounded allocation when parsing GNU sparse map in archive/tar

  tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A maliciously-crafted archive containing a large number of sparse regions can cause a Reader to read an unbounded amount of data from the archiv…

  Go standard library archive/tar katib-suggestion-hyperopt katib-earlystopping Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 29, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2404715
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2407258
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_22012.json
• report
  https://access.redhat.com/security/cve/CVE-2025-52881
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-52881
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-52881
• article
  https://github.com/opencontainers/runc/security/advisories/GHSA-cgrx-mc8f-2prm
• article
  https://github.com/opencontainers/selinux/pull/237
• report
  https://access.redhat.com/security/cve/CVE-2025-58183
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-58183
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-58183
• article
  https://access.redhat.com/errata/RHSA-2026:3122
• article
  https://go.dev/cl/709861
• article
  https://go.dev/issue/75677
• article
  https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI
• advisory
  https://pkg.go.dev/vuln/GO-2025-4014