Public bug reported: [Impact] An unprivileged user may cause an out-of-bounds write by setting up geneve options on the flower classifier.
[Test case] https://seclists.org/oss-sec/2023/q2/219 [Potential regression] Users setting up geneve options on the flower tc classifier can be affected. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Affects: linux (Ubuntu Focal) Importance: High Assignee: Thadeu Lima de Souza Cascardo (cascardo) Status: New ** Affects: linux (Ubuntu Jammy) Importance: High Assignee: Thadeu Lima de Souza Cascardo (cascardo) Status: New ** Affects: linux (Ubuntu Kinetic) Importance: High Assignee: Thadeu Lima de Souza Cascardo (cascardo) Status: New ** Affects: linux (Ubuntu Lunar) Importance: High Assignee: Thadeu Lima de Souza Cascardo (cascardo) Status: New ** Also affects: linux (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Kinetic) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Lunar) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Lunar) Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo) ** Changed in: linux (Ubuntu Lunar) Importance: Undecided => High ** Changed in: linux (Ubuntu Kinetic) Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo) ** Changed in: linux (Ubuntu Kinetic) Importance: Undecided => High ** Changed in: linux (Ubuntu Jammy) Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo) ** Changed in: linux (Ubuntu Jammy) Importance: Undecided => High ** Changed in: linux (Ubuntu Focal) Importance: Undecided => High ** Changed in: linux (Ubuntu Focal) Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2023577 Title: cls_flower: off-by-one in fl_set_geneve_opt Status in linux package in Ubuntu: New Status in linux source package in Focal: New Status in linux source package in Jammy: New Status in linux source package in Kinetic: New Status in linux source package in Lunar: New Bug description: [Impact] An unprivileged user may cause an out-of-bounds write by setting up geneve options on the flower classifier. [Test case] https://seclists.org/oss-sec/2023/q2/219 [Potential regression] Users setting up geneve options on the flower tc classifier can be affected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2023577/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
