diff options
Diffstat (limited to 'gnu/packages/patches/heimdal-CVE-2017-11103.patch')
| -rw-r--r-- | gnu/packages/patches/heimdal-CVE-2017-11103.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gnu/packages/patches/heimdal-CVE-2017-11103.patch b/gnu/packages/patches/heimdal-CVE-2017-11103.patch new file mode 100644 index 0000000000..d76f0df369 --- /dev/null +++ b/gnu/packages/patches/heimdal-CVE-2017-11103.patch @@ -0,0 +1,45 @@ +Fix CVE-2017-11103: + +https://orpheus-lyre.info/ +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11103 +https://security-tracker.debian.org/tracker/CVE-2017-11103 + +Patch lifted from upstream source repository: + +https://github.com/heimdal/heimdal/commit/6dd3eb836bbb80a00ffced4ad57077a1cdf227ea + +From 6dd3eb836bbb80a00ffced4ad57077a1cdf227ea Mon Sep 17 00:00:00 2001 +From: Jeffrey Altman <jaltman@secure-endpoints.com> +Date: Wed, 12 Apr 2017 15:40:42 -0400 +Subject: [PATCH] CVE-2017-11103: Orpheus' Lyre KDC-REP service name validation + +In _krb5_extract_ticket() the KDC-REP service name must be obtained from +encrypted version stored in 'enc_part' instead of the unencrypted version +stored in 'ticket'. Use of the unecrypted version provides an +opportunity for successful server impersonation and other attacks. + +Identified by Jeffrey Altman, Viktor Duchovni and Nico Williams. + +Change-Id: I45ef61e8a46e0f6588d64b5bd572a24c7432547c +--- + lib/krb5/ticket.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/lib/krb5/ticket.c b/lib/krb5/ticket.c +index d95d96d1b..b8d81c6ad 100644 +--- a/lib/krb5/ticket.c ++++ b/lib/krb5/ticket.c +@@ -705,8 +705,8 @@ _krb5_extract_ticket(krb5_context context, + /* check server referral and save principal */ + ret = _krb5_principalname2krb5_principal (context, + &tmp_principal, +- rep->kdc_rep.ticket.sname, +- rep->kdc_rep.ticket.realm); ++ rep->enc_part.sname, ++ rep->enc_part.srealm); + if (ret) + goto out; + if((flags & EXTRACT_TICKET_ALLOW_SERVER_MISMATCH) == 0){ +-- +2.13.3 + |