Bug 809845 (CVE-2021-37750)

Summary:	<app-crypt/mit-krb5-1.19.2-r2: NULL pointer dereference (CVE-2021-37750)
Product:	Gentoo Security	Reporter:	John Helmert III <ajak>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	IN_PROGRESS ---
Severity:	minor	CC:	kerberos
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49
Whiteboard:	B3 [glsa]
Package list:		Runtime testing required:	---
Bug Depends on:	830634
Bug Blocks:

Description John Helmert III archtester

2021-08-23 18:32:40 UTC

CVE-2021-37750:

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field.


Doesn't seem like the commit has made it into a release yet?

Comment 1 Larry the Git Cow gentoo-dev

2022-01-05 09:57:03 UTC

The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=16e1279e1a0b87ab89031972ea5b9f5136a67e76

commit 16e1279e1a0b87ab89031972ea5b9f5136a67e76
Author:     Eray Aslan <eras@gentoo.org>
AuthorDate: 2022-01-05 09:56:43 +0000
Commit:     Eray Aslan <eras@gentoo.org>
CommitDate: 2022-01-05 09:56:43 +0000

    app-crypt/mit-krb5: security bump
    
    Bug: https://bugs.gentoo.org/809845
    Package-Manager: Portage-3.0.30, Repoman-3.0.3
    Signed-off-by: Eray Aslan <eras@gentoo.org>

 .../mit-krb5/files/mit-krb5-CVE-2021-37750.patch   |  43 ++++++
 app-crypt/mit-krb5/mit-krb5-1.19.2-r2.ebuild       | 165 +++++++++++++++++++++
 2 files changed, 208 insertions(+)

Comment 2 John Helmert III archtester

2022-01-10 23:31:44 UTC

Please cleanup

Comment 3 Larry the Git Cow gentoo-dev

2022-01-11 13:24:45 UTC

The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7c51ee27df2fb1d6584a6aeb1623d59af7cd8cd6

commit 7c51ee27df2fb1d6584a6aeb1623d59af7cd8cd6
Author:     Eray Aslan <eras@gentoo.org>
AuthorDate: 2022-01-11 13:24:23 +0000
Commit:     Eray Aslan <eras@gentoo.org>
CommitDate: 2022-01-11 13:24:23 +0000

    app-crypt/mit-krb5: cleanup
    
    Bug: https://bugs.gentoo.org/809845
    Package-Manager: Portage-3.0.30, Repoman-3.0.3
    Signed-off-by: Eray Aslan <eras@gentoo.org>

 app-crypt/mit-krb5/mit-krb5-1.19.2-r1.ebuild | 164 ---------------------------
 1 file changed, 164 deletions(-)

Comment 4 John Helmert III archtester

2022-01-11 20:39:42 UTC

Thanks!