Revert "heimdal: CVE-2022-41916: Check for overflow in _gsskrb5_get_mech()"This was already applied by ed549cb0c53f.Repored by: Gunther Nikl <gnikl@justmail.de>This reverts commit 9286d46a794f2
Revert "heimdal: CVE-2022-41916: Check for overflow in _gsskrb5_get_mech()"This was already applied by ed549cb0c53f.Repored by: Gunther Nikl <gnikl@justmail.de>This reverts commit 9286d46a794f25482880d29864a8901ef6666fae.
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heimdal: CVE-2022-41916: Check for overflow in _gsskrb5_get_mech()Apply upstream 22749e918 to fix a buffer overflow.Upstream notes: If len_len is equal to total_len - 1 (i.e. the input consi
heimdal: CVE-2022-41916: Check for overflow in _gsskrb5_get_mech()Apply upstream 22749e918 to fix a buffer overflow.Upstream notes: If len_len is equal to total_len - 1 (i.e. the input consists only of a 0x60 byte and a length), the expression 'total_len - 1 - len_len - 1', used as the 'len' parameter to der_get_length(), will overflow to SIZE_MAX. Then der_get_length() will proceed to read, unconstrained, whatever data follows in memory. Add a check to ensure that doesn't happenThis is similar to samba CVE-2022-3437.Reported by: emasteSecurity: CVE-2022-41916Obtained from: upstream 22749e918MFC after: 1 week
heimdal: Fix CVE-2022-4152, signature validation errorWhen CVE-2022-3437 was fixed by changing memcmp to be a constanttime and the workaround for th e compiler was to add "!=0". Howeverthe logic
heimdal: Fix CVE-2022-4152, signature validation errorWhen CVE-2022-3437 was fixed by changing memcmp to be a constanttime and the workaround for th e compiler was to add "!=0". Howeverthe logic implmented was inverted resulting in CVE-2022-4152.Reported by: Timothy E Zingelman <zingelman _AT_ fnal.gov>MFC after: 1 daySecurity: CVE-2022-4152Security: https://www.cve.org/CVERecord?id=CVE-2022-45142Security: https://nvd.nist.gov/vuln/detail/CVE-2022-45142Security: https://security-tracker.debian.org/tracker/CVE-2022-45142Security: https://bugs.gentoo.org/show_bug.cgi?id=CVE-2022-45142Security: https://bugzilla.samba.org/show_bug.cgi?id=15296Security: https://www.openwall.com/lists/oss-security/2023/02/08/1
heimdal: Fix multiple security vulnerabilitiesThe following issues are patched: - CVE-2022-42898 PAC parse integer overflows - CVE-2022-3437 Overflows and non-constant time leaks in DES{,3} and
heimdal: Fix multiple security vulnerabilitiesThe following issues are patched: - CVE-2022-42898 PAC parse integer overflows - CVE-2022-3437 Overflows and non-constant time leaks in DES{,3} and arcfour - CVE-2021-44758 NULL dereference DoS in SPNEGO acceptors - CVE-2022-44640 Heimdal KDC: invalid free in ASN.1 codec Note that CVE-2022-44640 is a severe vulnerability, possibly a 10.0 on the Common Vulnerability Scoring System (CVSS) v3, as we believe it should be possible to get an RCE on a KDC, which means that credentials can be compromised that can be used to impersonate anyone in a realm or forest of realms. Heimdal's ASN.1 compiler generates code that allows specially crafted DER encodings of CHOICEs to invoke the wrong free function on the decoded structure upon decode error. This is known to impact the Heimdal KDC, leading to an invalid free() of an address partly or wholly under the control of the attacker, in turn leading to a potential remote code execution (RCE) vulnerability. This error affects the DER codec for all extensible CHOICE types used in Heimdal, though not all cases will be exploitable. We have not completed a thorough analysis of all the Heimdal components affected, thus the Kerberos client, the X.509 library, and other parts, may be affected as well. This bug has been in Heimdal's ASN.1 compiler since 2005, but it may only affect Heimdal 1.6 and up. It was first reported by Douglas Bagnall, though it had been found independently by the Heimdal maintainers via fuzzing a few weeks earlier. While no zero-day exploit is known, such an exploit will likely be available soon after public disclosure. - CVE-2019-14870: Validate client attributes in protocol-transition - CVE-2019-14870: Apply forwardable policy in protocol-transition - CVE-2019-14870: Always lookup impersonate client in DBSponsored by: so (philip)Obtained from: so (philip)Tested by: philip, cyMFC after: immediately
Update the existing heimdal implementation for OpenSSL 1.1.Existing work is underway to import a newer version of heimdal, butthis patchset gets us to a fully working tree to enable more widespre
Update the existing heimdal implementation for OpenSSL 1.1.Existing work is underway to import a newer version of heimdal, butthis patchset gets us to a fully working tree to enable more widespread testing of OpenSSL 1.1 for now.I've also enabled WARNS=1 for kerberos (which is the reason for thechange in libroken). Having -Werror enabled was useful during the1.1 updates and we probably should have warnings enabled by defaultfor kerberos anyway.This passes make tinderbox, and I have also done some very lightruntime testing on amd64.Reviewed by: bjk, jkim, emasteDifferential Revision: https://reviews.freebsd.org/D17276
Apply patch from upstream Heimdal for encoding fixRFC 4402 specifies the implementation of the gss_pseudo_random()function for the krb5 mechanism (and the C bindings therein).The implementation u
Apply patch from upstream Heimdal for encoding fixRFC 4402 specifies the implementation of the gss_pseudo_random()function for the krb5 mechanism (and the C bindings therein).The implementation uses a PRF+ function that concatenates the outputof individual krb5 pseudo-random operations produced with a counterand seed. The original implementation of this function in Heimdalincorrectly encoded the counter as a little-endian integer, but theRFC specifies the counter encoding as big-endian. The implementationinitializes the counter to zero, so the first block of output (16 octets,for the modern AES enctypes 17 and 18) is unchanged. (RFC 4402 specifiesthat the counter should begin at 1, but both existing implementationsbegin with zero and it looks like the standard will be re-issued, withtest vectors, to begin at zero.)This is upstream's commit f85652af868e64811f2b32b815d4198e7f9017f6,from 13 October, 2013:% Fix krb5's gss_pseudo_random() (n is big-endian)%% The first enctype RFC3961 prf output length's bytes are correct because% the little- and big-endian representations of unsigned zero are the% same. The second block of output was wrong because the counter was not% being encoded as big-endian.%% This change could break applications. But those applications would not% have been interoperating with other implementations anyways (in% particular: MIT's).Approved by: hrs (mentor, src committer)MFC after: 3 days
- Update FreeBSD's Heimdal distribution to 1.5.2. This is a bugfix release, which fixes a DoS issue in libkrb5.
- Update FreeBSD Heimdal distribution to version 1.5.1. This also brings several new kerberos related libraries and applications to FreeBSD: o kgetcred(1) allows one to manually get a ticket for
- Update FreeBSD Heimdal distribution to version 1.5.1. This also brings several new kerberos related libraries and applications to FreeBSD: o kgetcred(1) allows one to manually get a ticket for a particular service. o kf(1) securily forwards ticket to another host through an authenticated and encrypted stream. o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1) and other user kerberos operations. klist and kswitch are just symlinks to kcc(1) now. o kswitch(1) allows you to easily switch between kerberos credentials if you're running KCM. o hxtool(1) is a certificate management tool to use with PKINIT. o string2key(1) maps a password into key. o kdigest(8) is a userland tool to access the KDC's digest interface. o kimpersonate(8) creates a "fake" ticket for a service. We also now install manpages for some lirbaries that were not installed before, libheimntlm and libhx509.- The new HEIMDAL version no longer supports Kerberos 4. All users are recommended to switch to Kerberos 5.- Weak ciphers are now disabled by default. To enable DES support (used by telnet(8)), use "allow_weak_crypto" option in krb5.conf.- libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings disabled due to the function they use (krb5_get_err_text(3)) being deprecated. I plan to work on this next.- Heimdal's KDC now require sqlite to operate. We use the bundled version and install it as libheimsqlite. If some other FreeBSD components will require it in the future we can rename it to libbsdsqlite and use for these components as well.- This is not a latest Heimdal version, the new one was released while I was working on the update. I will update it to 1.5.2 soon, as it fixes some important bugs and security issues.
Vendor import of Heimdal 1.1