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45ec128def
patches/packages/krb5-1.19.2-x86_64-3_slack15.0.txz: Rebuilt.
Fixed integer overflows in PAC parsing.
Fixed memory leak in OTP kdcpreauth module.
Fixed PKCS11 module path search.
For more information, see:
https://www.cve.org/CVERecord?id=CVE-2022-42898
(* Security fix *)
patches/packages/mozilla-firefox-102.5.0esr-x86_64-1_slack15.0.txz: Upgraded.
This update contains security fixes and improvements.
For more information, see:
https://www.mozilla.org/en-US/firefox/102.5.0/releasenotes/
https://www.mozilla.org/security/advisories/mfsa2022-48/
https://www.cve.org/CVERecord?id=CVE-2022-45403
https://www.cve.org/CVERecord?id=CVE-2022-45404
https://www.cve.org/CVERecord?id=CVE-2022-45405
https://www.cve.org/CVERecord?id=CVE-2022-45406
https://www.cve.org/CVERecord?id=CVE-2022-45408
https://www.cve.org/CVERecord?id=CVE-2022-45409
https://www.cve.org/CVERecord?id=CVE-2022-45410
https://www.cve.org/CVERecord?id=CVE-2022-45411
https://www.cve.org/CVERecord?id=CVE-2022-45412
https://www.cve.org/CVERecord?id=CVE-2022-45416
https://www.cve.org/CVERecord?id=CVE-2022-45418
https://www.cve.org/CVERecord?id=CVE-2022-45420
https://www.cve.org/CVERecord?id=CVE-2022-45421
(* Security fix *)
patches/packages/mozilla-thunderbird-102.5.0-x86_64-1_slack15.0.txz: Upgraded.
This release contains security fixes and improvements.
For more information, see:
https://www.mozilla.org/en-US/thunderbird/102.5.0/releasenotes/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-49/
https://www.cve.org/CVERecord?id=CVE-2022-45403
https://www.cve.org/CVERecord?id=CVE-2022-45404
https://www.cve.org/CVERecord?id=CVE-2022-45405
https://www.cve.org/CVERecord?id=CVE-2022-45406
https://www.cve.org/CVERecord?id=CVE-2022-45408
https://www.cve.org/CVERecord?id=CVE-2022-45409
https://www.cve.org/CVERecord?id=CVE-2022-45410
https://www.cve.org/CVERecord?id=CVE-2022-45411
https://www.cve.org/CVERecord?id=CVE-2022-45412
https://www.cve.org/CVERecord?id=CVE-2022-45416
https://www.cve.org/CVERecord?id=CVE-2022-45418
https://www.cve.org/CVERecord?id=CVE-2022-45420
https://www.cve.org/CVERecord?id=CVE-2022-45421
(* Security fix *)
patches/packages/samba-4.15.12-x86_64-1_slack15.0.txz: Upgraded.
Fixed a security issue where Samba's Kerberos libraries and AD DC failed
to guard against integer overflows when parsing a PAC on a 32-bit system,
which allowed an attacker with a forged PAC to corrupt the heap.
For more information, see:
https://www.samba.org/samba/security/CVE-2022-42898.html
https://www.cve.org/CVERecord?id=CVE-2022-42898
(* Security fix *)
patches/packages/xfce4-settings-4.16.5-x86_64-1_slack15.0.txz: Upgraded.
This update fixes regressions in the previous security fix:
mime-settings: Properly quote command parameters.
Revert "Escape characters which do not belong into an URI/URL (Issue #390)."
43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
From d775c95af7606a51bf79547a94fa52ddd1cb7f49 Mon Sep 17 00:00:00 2001
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From: Greg Hudson <ghudson@mit.edu>
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Date: Tue, 3 Aug 2021 01:15:27 -0400
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Subject: [PATCH] Fix KDC null deref on TGS inner body null server
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After the KDC decodes a FAST inner body, it does not check for a null
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server. Prior to commit 39548a5b17bbda9eeb63625a201cfd19b9de1c5b this
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would typically result in an error from krb5_unparse_name(), but with
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the addition of get_local_tgt() it results in a null dereference. Add
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a null check.
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Reported by Joseph Sutton of Catalyst.
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CVE-2021-37750:
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In MIT krb5 releases 1.14 and later, an authenticated attacker can
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cause a null dereference in the KDC by sending a FAST TGS request with
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no server field.
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ticket: 9008 (new)
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tags: pullup
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target_version: 1.19-next
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target_version: 1.18-next
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---
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src/kdc/do_tgs_req.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/src/kdc/do_tgs_req.c b/src/kdc/do_tgs_req.c
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index 582e497cc9..32dc65fa8e 100644
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--- a/src/kdc/do_tgs_req.c
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+++ b/src/kdc/do_tgs_req.c
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@@ -204,6 +204,11 @@ process_tgs_req(krb5_kdc_req *request, krb5_data *pkt,
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status = "FIND_FAST";
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goto cleanup;
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}
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+ if (sprinc == NULL) {
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+ status = "NULL_SERVER";
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+ errcode = KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN;
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+ goto cleanup;
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+ }
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errcode = get_local_tgt(kdc_context, &sprinc->realm, header_server,
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&local_tgt, &local_tgt_storage, &local_tgt_key);
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