[lkml]   [2003]   [Apr]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: How to fix the ptrace flaw without rebooting
    On 4 Apr 2003, Alan Cox wrote:

    > Thats not a sufficient fix except for people blindly running the
    > example exploit

    Also, removing CAP_SYS_PTRACE from the capability bounded set does
    not close the hole (well, as shown by the exploit) either. It seems
    CAP_SYS_PTRACE only closes the case of PTRACE_ATTACH, all other
    ptrace()'s work, eg PTRACE_TRACEME -> strace echo foo and the exploit
    works too.

    Should CAP_SYS_PTRACE not do as the name suggests and completely
    disallow ptrace()? (not just PTRACE_ATTACH).

    Paul Jakma Key ID: 64A2FF6A
    warning: do not ever send email to
    An egghead is one who stands firmly on both feet, in mid-air, on both
    sides of an issue.
    -- Homer Ferguson

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:34    [W:0.020 / U:42.104 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site