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Check IP opts length

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Resolves: rhbz#1960015
This commit is contained in:
Dmitry Belyavskiy 2022-10-21 17:53:00 +02:00
parent 09b309fe0e
commit f79c122b0b
2 changed files with 12 additions and 6 deletions
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11
openssh-6.6p1-allow-ip-opts.patch
View File

@ -1,7 +1,7 @@
diff -up openssh/sshd.c.ip-opts openssh/sshd.c
--- openssh/sshd.c.ip-opts 2016-07-25 13:58:48.998507834 +0200
+++ openssh/sshd.c 2016-07-25 14:01:28.346469878 +0200
@@ -1507,12 +1507,29 @@ check_ip_options(struct ssh *ssh)
@@ -1507,12 +1507,32 @@ check_ip_options(struct ssh *ssh)
if (getsockopt(sock_in, IPPROTO_IP, IP_OPTIONS, opts,
&option_size) >= 0 && option_size != 0) {
@ -21,11 +21,14 @@ diff -up openssh/sshd.c.ip-opts openssh/sshd.c
+ case 130:
+ case 133:
+ case 134:
+ i += opts[i + 1];
+ break;
+ if (i + 1 < option_size && opts[i + 1] >= 2) {
+ i += opts[i + 1];
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ /* Fail, fatally, if we detect either loose or strict
+ * source routing options. */
+ * or incorrect source routing options. */
+ text[0] = '\0';
+ for (i = 0; i < option_size; i++)
+ snprintf(text + i*3, sizeof(text) - i*3,

7
openssh.spec
View File

@ -47,7 +47,7 @@
# Do not forget to bump pam_ssh_agent_auth release if you rewind the main package release to 1
%global openssh_ver 9.0p1
%global openssh_rel 6
%global openssh_rel 7
%global pam_ssh_agent_ver 0.10.4
%global pam_ssh_agent_rel 7
@ -722,7 +722,10 @@ test -f %{sysconfig_anaconda} && \
%endif
%changelog
* Fri Oct 5 2022 Anthony Rabbito <hello@anthonyrabbito.com> - 9.0p1-6
* Fri Oct 21 2022 Dmitry Belyavskiy <dbelyavs@redhat.com> - 9.0p1-7
- Check IP opts length (rhbz#1960015)
* Wed Oct 5 2022 Anthony Rabbito <hello@anthonyrabbito.com> - 9.0p1-6
- Add a socket unit to ssh-agent user unit (rhbz#2125576)
* Thu Sep 29 2022 Dmitry Belyavskiy <dbelyavs@redhat.com> - 9.0p1-5