[CLSA-2026:1790836943] Fix CVE(s): CVE-2026-11940, CVE-2026-82049
Type:
security
Severity:
Important
Release date:
2026-10-01 06:42:36 UTC
Description:
* SECURITY UPDATE: change of permissions and modification time of a file outside the destination via a tar hard link to a symlink - debian/patches/CVE-2026-82049.patch: resolve the target of a hard link member with os.path.realpath() in TarFile.makelink() in Lib/tarfile.py, so the extracted hard link points to the file itself instead of duplicating a symlink whose relative target escapes the destination directory; make both link calls inside the upstream AttributeError/NotImplementedError/OSError envelope, so a link refused by the system (e.g. link(2) on a directory) falls back to extracting the linked member instead of aborting the extraction - CVE-2026-82049 * SECURITY UPDATE: tar extraction filter bypass via a hard link to a symlink stored at a deeper name - debian/patches/CVE-2026-11940.patch: pass the member that a hard link falls back to extracting through the extraction filter, under its own name and under the link's name, in TarFile.makelink_with_filter() in Lib/tarfile.py, and raise LinkFallbackError when the filter rejects it, so a symlink validated at its deeper archived name can no longer be recreated at the link's shallower path outside the destination; skip that member when the filter returns None for it under the link's name instead of extracting it anyway - CVE-2026-11940 * debian/rules: run test_tarfile verbosely in the check target, so the result of each tarfile test appears in the build log
Updated packages:
  • idle-python2.7_2.7.18-8+deb11u1+tuxcare.els5_all.deb
    sha:5db3b7572ef2ee22523f5f50a74a098a3bee8ddd
  • libpython2.7_2.7.18-8+deb11u1+tuxcare.els5_amd64.deb
    sha:2021354942cfe6b33306b4a418a933f8eefdd99c
  • libpython2.7-dev_2.7.18-8+deb11u1+tuxcare.els5_amd64.deb
    sha:103ae9d0ea94e7de6255376fd23eb33901d471ef
  • libpython2.7-minimal_2.7.18-8+deb11u1+tuxcare.els5_amd64.deb
    sha:0b6e0fabe6e0e387a03d7ab2ccd47e1fbd786ceb
  • libpython2.7-stdlib_2.7.18-8+deb11u1+tuxcare.els5_amd64.deb
    sha:02d62d8efe837ea23f3f314ebc2c0593933a08c7
  • libpython2.7-testsuite_2.7.18-8+deb11u1+tuxcare.els5_all.deb
    sha:6b933602ebd7704c70b323c23e01404935a1d73f
  • python2.7_2.7.18-8+deb11u1+tuxcare.els5_amd64.deb
    sha:2c627c64f6ccdf9af8331b3d23918febd1404aa0
  • python2.7-dev_2.7.18-8+deb11u1+tuxcare.els5_amd64.deb
    sha:1b696db9264677831fedc164e9c50ac1dc8fa72c
  • python2.7-doc_2.7.18-8+deb11u1+tuxcare.els5_all.deb
    sha:0dac9a9050c298e0c2724361bfbffc149f38be18
  • python2.7-examples_2.7.18-8+deb11u1+tuxcare.els5_all.deb
    sha:7db48075d3db8a7cb143631a4a6b9cf8911570be
  • python2.7-minimal_2.7.18-8+deb11u1+tuxcare.els5_amd64.deb
    sha:6c8b8a4b6878475d9ede0e75c862ce7057cc3e26
  • libpython2.7_2.7.18-8+deb11u1+tuxcare.els5_arm64.deb
    sha:53e02b27dffd819256b049c44f608dab0672be60
  • libpython2.7-dev_2.7.18-8+deb11u1+tuxcare.els5_arm64.deb
    sha:4441b4be0e50c43051ab0b4a0d6a52b93c6cb8df
  • libpython2.7-minimal_2.7.18-8+deb11u1+tuxcare.els5_arm64.deb
    sha:7a214b98f37f30b420c89c686ce94d8b6c4d9f8e
  • libpython2.7-stdlib_2.7.18-8+deb11u1+tuxcare.els5_arm64.deb
    sha:83737f213bc1b74e5a58713cf269ca36b8568656
  • python2.7_2.7.18-8+deb11u1+tuxcare.els5_arm64.deb
    sha:de4cfbe5d0847765905969c7d1ab8b6c4f6b1e81
  • python2.7-dev_2.7.18-8+deb11u1+tuxcare.els5_arm64.deb
    sha:bf0c256bfd5da846be889de2b57c4634e641e22f
  • python2.7-minimal_2.7.18-8+deb11u1+tuxcare.els5_arm64.deb
    sha:b456e3aa8f7b00052dc7e53b1b2302a123b850bf
  • libpython2.7_2.7.18-8+deb11u1+tuxcare.els5_armel.deb
    sha:3738c18563c5000ff58fffd91526386b7ed65fec
  • libpython2.7-dev_2.7.18-8+deb11u1+tuxcare.els5_armel.deb
    sha:1a9874f537f48ba106522367e30e9cf7c92eb59d
  • libpython2.7-minimal_2.7.18-8+deb11u1+tuxcare.els5_armel.deb
    sha:538fc3281ab2572648e4ef655d3d0d46a0482cbf
  • libpython2.7-stdlib_2.7.18-8+deb11u1+tuxcare.els5_armel.deb
    sha:09f5eee7279de97b26afce08503c2222bb1b5ee2
  • python2.7_2.7.18-8+deb11u1+tuxcare.els5_armel.deb
    sha:85265332c963db533f2c5790210af0d281585408
  • python2.7-dev_2.7.18-8+deb11u1+tuxcare.els5_armel.deb
    sha:9201b5606c673b3b19e1bb2160d0b5db6431d7df
  • python2.7-minimal_2.7.18-8+deb11u1+tuxcare.els5_armel.deb
    sha:247cbcedc53805aa38c051cc4b622918d560ddab
Notes:
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