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Security update for acl, attr

Type: advisorySource: OSV1 source record

This update for acl, attr fixes the following issue: - CVE-2026-54369,CVE-2026-54370,CVE-2026-54371: Symlink Traversal Privilege Escalation via getfattr/setfattr, getfacl/setfacl/chacl, libacl (bsc#1268867). Changes for acl: - Update to 2.4.0 (jsc#PED-16501): Major Issues Fixed: - The libacl library functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() take a pathname argument and follow symbolic links. When a privileged user calls one of those functions, an attacker that controls a pathname component can replace a file or directory with a symbolic link and redirect the operation to a different file. This can lead to local privilege escalation. (CVE-2026-54369, bsc#1268867) The library functions cannot be fixed without breaking compatibility; the described behaviour is by design. Instead, version 2.4.0 of the acl package introduces the additional functions acl_get_file_at(), acl_set_file_at(), acl_extended_file_at(), and acl_delete_def_file_at(). These functions each take a dirfd file descriptor argument and an at_flags argument and accept the AT_SYMLINK_NOFOLLOW and AT_EMPTY_PATH flags. Use these functions to control when to follow symbolic links. (CVE-2026-54370, bsc#1268867) In addition, the libacl functions acl_get_fd(), acl_set_fd(), and acl_extended_fd() functions always operate on the access ACL; the library previously did not offer a way to operate on the default ACL of a directory file descriptor. The new functions remove that restr

Announced Source revision 1
Original source ↗

SUSE-SU-2026:23726-1

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:SUSE-SU-2026:23726-1

acl

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
2.4.0-160000.1.1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

attr

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
2.6.0-160000.1.1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

acl

Source reference: /affected/2/package/name

Affected versions
Not stated in this record
Fixed versions
2.4.0-160000.1.1

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

attr

Source reference: /affected/3/package/name

Affected versions
Not stated in this record
Fixed versions
2.6.0-160000.1.1

Source reference: /affected/3/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.4.0-160000.1.1"
          }
        ]
      }
    ],
    "package": {
      "name": "acl",
      "purl": "pkg:rpm/suse/acl&distro=SUSE%20Linux%20Enterprise%20Server%2016.0",
      "ecosystem": "SUSE:Linux Enterprise Server 16.0"
    },
    "database_specific": {
      "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23726-1.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "acl": "2.4.0-160000.1.1",
          "attr": "2.6.0-160000.1.1",
          "libacl1": "2.4.0-160000.1.1",
          "libattr1": "2.6.0-160000.1.1",
          "libacl-devel": "2.4.0-160000.1.1",
          "libattr-devel": "2.6.0-160000.1.1",
          "libattr-devel-static": "2.6.0-160000.1.1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.6.0-160000.1.1"
          }
        ]
      }
    ],
    "package": {
      "name": "attr",
      "purl": "pkg:rpm/suse/attr&distro=SUSE%20Linux%20Enterprise%20Server%2016.0",
      "ecosystem": "SUSE:Linux Enterprise Server 16.0"
    },
    "database_specific": {
      "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23726-1.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "acl": "2.4.0-160000.1.1",
          "attr": "2.6.0-160000.1.1",
          "libacl1": "2.4.0-160000.1.1",
          "libattr1": "2.6.0-160000.1.1",
          "libacl-devel": "2.4.0-160000.1.1",
          "libattr-devel": "2.6.0-160000.1.1",
          "libattr-devel-static": "2.6.0-160000.1.1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.4.0-160000.1.1"
          }
        ]
      }
    ],
    "package": {
      "name": "acl",
      "purl": "pkg:rpm/suse/acl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0",
      "ecosystem": "SUSE:Linux Enterprise Server for SAP applications 16.0"
    },
    "database_specific": {
      "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23726-1.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "acl": "2.4.0-160000.1.1",
          "attr": "2.6.0-160000.1.1",
          "libacl1": "2.4.0-160000.1.1",
          "libattr1": "2.6.0-160000.1.1",
          "libacl-devel": "2.4.0-160000.1.1",
          "libattr-devel": "2.6.0-160000.1.1",
          "libattr-devel-static": "2.6.0-160000.1.1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.6.0-160000.1.1"
          }
        ]
      }
    ],
    "package": {
      "name": "attr",
      "purl": "pkg:rpm/suse/attr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0",
      "ecosystem": "SUSE:Linux Enterprise Server for SAP applications 16.0"
    },
    "database_specific": {
      "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23726-1.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "acl": "2.4.0-160000.1.1",
          "attr": "2.6.0-160000.1.1",
          "libacl1": "2.4.0-160000.1.1",
          "libattr1": "2.6.0-160000.1.1",
          "libacl-devel": "2.4.0-160000.1.1",
          "libattr-devel": "2.6.0-160000.1.1",
          "libattr-devel-static": "2.6.0-160000.1.1"
        }
      ]
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#30908 · Revision 1
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Publisher date
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