diff options
Diffstat (limited to 'meta/recipes-connectivity/openssh/openssh/CVE-2021-41617.patch')
| -rw-r--r-- | meta/recipes-connectivity/openssh/openssh/CVE-2021-41617.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/meta/recipes-connectivity/openssh/openssh/CVE-2021-41617.patch b/meta/recipes-connectivity/openssh/openssh/CVE-2021-41617.patch new file mode 100644 index 0000000000..bda896f581 --- /dev/null +++ b/meta/recipes-connectivity/openssh/openssh/CVE-2021-41617.patch @@ -0,0 +1,52 @@ +From a6414400ec94a17871081f7df24f910a6ee01b8b Mon Sep 17 00:00:00 2001 +From: Ali Abdallah <aabdallah@suse.de> +Date: Wed, 24 Nov 2021 13:33:39 +0100 +Subject: [PATCH] CVE-2021-41617 fix + +backport of the following two upstream commits + +f3cbe43e28fe71427d41cfe3a17125b972710455 +bf944e3794eff5413f2df1ef37cddf96918c6bde + +CVE-2021-41617 failed to correctly initialise supplemental groups +when executing an AuthorizedKeysCommand or AuthorizedPrincipalsCommand, +where a AuthorizedKeysCommandUser or AuthorizedPrincipalsCommandUser +directive has been set to run the command as a different user. Instead +these commands would inherit the groups that sshd(8) was started with. +--- + auth.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +CVE: CVE-2021-41617 +Upstream-Status: Backport [https://bugzilla.suse.com/attachment.cgi?id=854015] +Comment: No change in any hunk +Signed-off-by: Sana Kazi <Sana.Kazi@kpit.com> + +diff --git a/auth.c b/auth.c +index 163038f..a47b267 100644 +--- a/auth.c ++++ b/auth.c +@@ -52,6 +52,7 @@ + #include <limits.h> + #include <netdb.h> + #include <time.h> ++#include <grp.h> + + #include "xmalloc.h" + #include "match.h" +@@ -851,6 +852,13 @@ subprocess(const char *tag, struct passwd *pw, const char *command, + } + closefrom(STDERR_FILENO + 1); + ++ if (geteuid() == 0 && ++ initgroups(pw->pw_name, pw->pw_gid) == -1) { ++ error("%s: initgroups(%s, %u): %s", tag, ++ pw->pw_name, (u_int)pw->pw_gid, strerror(errno)); ++ _exit(1); ++ } ++ + /* Don't use permanently_set_uid() here to avoid fatal() */ + if (setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) == -1) { + error("%s: setresgid %u: %s", tag, (u_int)pw->pw_gid, +-- +2.26.2 |