diff options
Diffstat (limited to 'meta/recipes-extended/screen/screen/CVE-2023-24626.patch')
| -rw-r--r-- | meta/recipes-extended/screen/screen/CVE-2023-24626.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/meta/recipes-extended/screen/screen/CVE-2023-24626.patch b/meta/recipes-extended/screen/screen/CVE-2023-24626.patch new file mode 100644 index 0000000000..73caf9d81b --- /dev/null +++ b/meta/recipes-extended/screen/screen/CVE-2023-24626.patch @@ -0,0 +1,40 @@ +From e9ad41bfedb4537a6f0de20f00b27c7739f168f7 Mon Sep 17 00:00:00 2001 +From: Alexander Naumov <alexander_naumov@opensuse.org> +Date: Mon, 30 Jan 2023 17:22:25 +0200 +Subject: fix: missing signal sending permission check on failed query messages + +Signed-off-by: Alexander Naumov <alexander_naumov@opensuse.org> + +CVE: CVE-2023-24626 +Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/screen.git/commit/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7] +Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com> +--- + socket.c | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +diff --git a/socket.c b/socket.c +index bb68b35..9d87445 100644 +--- a/socket.c ++++ b/socket.c +@@ -1285,11 +1285,16 @@ ReceiveMsg() + else + queryflag = -1; + +- Kill(m.m.command.apid, ++ if (CheckPid(m.m.command.apid)) { ++ Msg(0, "Query attempt with bad pid(%d)!", m.m.command.apid); ++ } ++ else { ++ Kill(m.m.command.apid, + (queryflag >= 0) + ? SIGCONT + : SIG_BYE); /* Send SIG_BYE if an error happened */ +- queryflag = -1; ++ queryflag = -1; ++ } + } + break; + case MSG_COMMAND: +-- +2.25.1 + |