[Bug 264128] Out-of-bounds read in pfct l(8) when run with -a “” (as in “period ic daily”).

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 22 May 2022 09:00:42 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264128

--- Comment #1 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=298663855015c1eba7ccf5b88168f433653eb609

commit 298663855015c1eba7ccf5b88168f433653eb609
Author:     Jessica Clarke <jrtc27@FreeBSD.org>
AuthorDate: 2022-05-22 08:31:42 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2022-05-22 08:31:42 +0000

    pfctl: fix out-of-bounds access

    If pfctl is called with "pfctl -a ''" we read outside of the anchoropt
    buffer. Check that the buffer is sufficiently long to avoid that.

    Maintain the existing (and desired, because it's used as such in
    /etc/periodic/security/520.pfdenied) behaviour of treating "-a ''" as a
    request for the root anchor (or no anchor specified).

    PR:             264128
    Reviewed by:    kp

 sbin/pfctl/pfctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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