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Permalink CVE-2026-3184
3.7 LOW
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
updated 1 month, 2 weeks ago by @LeSuisse Activity log
  • Created suggestion 1 month, 3 weeks ago
  • @LeSuisse ignored
    27 packages
    • more
    • wall
    • mount
    • eject
    • umount
    • logger
    • hexdump
    • libuuid
    • libsmartcols
    • unixtools.col
    • unixtools.fsck
    • unixtools.more
    • unixtools.wall
    • unixtools.eject
    • unixtools.fdisk
    • unixtools.mount
    • unixtools.write
    • unixtools.column
    • unixtools.getopt
    • unixtools.logger
    • unixtools.script
    • unixtools.umount
    • unixtools.hexdump
    • unixtools.whereis
    • util-linuxMinimal
    • uutils-util-linux
    • unixtools.util-linux
    1 month, 2 weeks ago
  • @LeSuisse accepted 1 month, 2 weeks ago
  • @LeSuisse published on GitHub 1 month, 2 weeks ago
Util-linux: util-linux: access control bypass due to improper hostname canonicalization

A flaw was found in util-linux. Improper hostname canonicalization in the `login(1)` utility, when invoked with the `-h` option, can modify the supplied remote hostname before setting `PAM_RHOST`. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing host-based Pluggable Authentication Modules (PAM) access control rules that rely on fully qualified domain names. This could lead to unauthorized access.

References

Ignored references (1)

Affected products

rhcos
util-linux

Matching in nixpkgs

Ignored packages (27)

Package maintainers

Patch: https://github.com/util-linux/util-linux/commit/8b29aeb081e297e48c4c1ac53d88ae07e1331984