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| author |   Patrick J Volkerding <volkerdi@slackware.com> | 2022-10-17 19:31:45 +0000 |
|---|---|---|
| committer |   Eric Hameleers <alien@slackware.com> | 2022-10-18 07:00:18 +0200 |
| commit | 717971ecd65b6255712f5352cbd58ee028f32f1b (patch) | |
| tree | 11aa384ad7f673c2d490c542ebed14f4334c8e78 /source/x/x11/patch/xorg-server/CVE-2022-3550.patch | |
| parent | 9b906307deaeeb6ceef5d5c11abdc1f0770dca02 (diff) | |
| download | current-717971ecd65b6255712f5352cbd58ee028f32f1b.tar.gz current-717971ecd65b6255712f5352cbd58ee028f32f1b.tar.xz | |
Mon Oct 17 19:31:45 UTC 202220221017193145
l/libqalculate-4.4.0-x86_64-1.txz: Upgraded.
l/netpbm-11.00.01-x86_64-1.txz: Upgraded.
x/xorg-server-21.1.4-x86_64-2.txz: Rebuilt.
xkb: proof GetCountedString against request length attacks.
xkb: fix some possible memleaks in XkbGetKbdByName.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3550
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3551
(* Security fix *)
x/xorg-server-xephyr-21.1.4-x86_64-2.txz: Rebuilt.
x/xorg-server-xnest-21.1.4-x86_64-2.txz: Rebuilt.
x/xorg-server-xvfb-21.1.4-x86_64-2.txz: Rebuilt.
x/xorg-server-xwayland-22.1.3-x86_64-2.txz: Rebuilt.
xkb: proof GetCountedString against request length attacks.
xkb: fix some possible memleaks in XkbGetKbdByName.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3550
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3551
(* Security fix *)
xap/blueman-2.3.4-x86_64-1.txz: Upgraded.
Diffstat (limited to 'source/x/x11/patch/xorg-server/CVE-2022-3550.patch')
| -rw-r--r-- | source/x/x11/patch/xorg-server/CVE-2022-3550.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/source/x/x11/patch/xorg-server/CVE-2022-3550.patch b/source/x/x11/patch/xorg-server/CVE-2022-3550.patch new file mode 100644 index 000000000..3461b0749 --- /dev/null +++ b/source/x/x11/patch/xorg-server/CVE-2022-3550.patch @@ -0,0 +1,34 @@ +From 11beef0b7f1ed290348e45618e5fa0d2bffcb72e Mon Sep 17 00:00:00 2001 +From: Peter Hutterer <peter.hutterer@who-t.net> +Date: Tue, 5 Jul 2022 12:06:20 +1000 +Subject: xkb: proof GetCountedString against request length attacks + +GetCountedString did a check for the whole string to be within the +request buffer but not for the initial 2 bytes that contain the length +field. A swapped client could send a malformed request to trigger a +swaps() on those bytes, writing into random memory. + +Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> +--- + xkb/xkb.c | 5 +++++ + 1 file changed, 5 insertions(+) + +diff --git a/xkb/xkb.c b/xkb/xkb.c +index f42f59ef3..1841cff26 100644 +--- a/xkb/xkb.c ++++ b/xkb/xkb.c +@@ -5137,6 +5137,11 @@ _GetCountedString(char **wire_inout, ClientPtr client, char **str) + CARD16 len; + + wire = *wire_inout; ++ ++ if (client->req_len < ++ bytes_to_int32(wire + 2 - (char *) client->requestBuffer)) ++ return BadValue; ++ + len = *(CARD16 *) wire; + if (client->swapped) { + swaps(&len); +-- +cgit v1.2.1 + |