diff options
| author |   Patrick J Volkerding <volkerdi@slackware.com> | 2022-10-17 19:31:45 +0000 |
|---|---|---|
| committer |   Eric Hameleers <alien@slackware.com> | 2022-10-18 13:30:33 +0200 |
| commit | 2559feca78bc678c5bbf91419695174d3fcbdf14 (patch) | |
| tree | efa4d497c6065d936916a39b23f638c6b277b7b4 /patches/source/xorg-server-xwayland/CVE-2022-3550.patch | |
| parent | a37e7d6f03a8b559ab7c17eb42c13e7e06c2b9fc (diff) | |
| download | current-df8e6c56f156273e36542349a7e3375e99abfa18.tar.gz current-df8e6c56f156273e36542349a7e3375e99abfa18.tar.xz | |
Mon Oct 17 19:31:45 UTC 202220221017193145_15.0
patches/packages/xorg-server-1.20.14-x86_64-4_slack15.0.txz: Rebuilt.
xkb: proof GetCountedString against request length attacks.
xkb: fix some possible memleaks in XkbGetKbdByName.
xquartz: Fix a possible crash when editing the Application menu due
to mutating immutable arrays.
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
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3553
(* Security fix *)
patches/packages/xorg-server-xephyr-1.20.14-x86_64-4_slack15.0.txz: Rebuilt.
patches/packages/xorg-server-xnest-1.20.14-x86_64-4_slack15.0.txz: Rebuilt.
patches/packages/xorg-server-xvfb-1.20.14-x86_64-4_slack15.0.txz: Rebuilt.
patches/packages/xorg-server-xwayland-21.1.4-x86_64-3_slack15.0.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 *)
Diffstat (limited to 'patches/source/xorg-server-xwayland/CVE-2022-3550.patch')
| -rw-r--r-- | patches/source/xorg-server-xwayland/CVE-2022-3550.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/patches/source/xorg-server-xwayland/CVE-2022-3550.patch b/patches/source/xorg-server-xwayland/CVE-2022-3550.patch new file mode 100644 index 000000000..3461b0749 --- /dev/null +++ b/patches/source/xorg-server-xwayland/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 + |