oss-sec mailing list archives
Re: CVE request - Linux kernel - Fix handling of stored error in a negatively instantiated user key
From: cve-assign () mitre org
Date: Thu, 10 Dec 2015 01:19:34 -0500 (EST)
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
A malicious user with a local account may be able to escalate privileges and take control of local system by abusing the user key subsystem. https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096fe9eaea40a17e125569f9e657e34cdb6d73bd https://bugzilla.redhat.com/show_bug.cgi?id=1284450
The following may be used to trigger the bug in the user key type: keyctl request2 user user "" @u keyctl add user user "a" @u BUG: unable to handle kernel paging request at 00000000ffffff8a A similar bug can be tripped by: keyctl request2 trusted user "" @u keyctl add trusted user "a" @u This should also affect encrypted keys
Use CVE-2015-8539 for all of the mentioned variants of the problem with all key types. - -- CVE assignment team, MITRE CVE Numbering Authority M/S M300 202 Burlington Road, Bedford, MA 01730 USA [ PGP key available through http://cve.mitre.org/cve/request_id.html ] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJWaRkVAAoJEL54rhJi8gl5o/oP/1YN18NSpjPeJXZxqLEyK36Z P/Oh+smZA8SOns1cgtas7hN9u+4YDwec+t70GHxXLaxJ5FkkP/cSOHKBw1LvGfnT FXlGbMEtROjTgj1BnaIInD7k6jS/v4Yktsx+m3OtRixOKYUiIAkUCw02oxXzFzOE mvhvrOHIFNFe461uxDSjWS92stiTTNz+M8fr78At+jvZTHf1NKHSO00toKSR91h0 O8U3FuGdCp93wXbmPbSWA6V+8BqXyb9KoRZIsjy0ZPmdrkiN93kC+HMoajs7640Q +kmpr47lU1m+ylZR+lb5fiKd+LZQ0nfWY1NrxSVhZdf+JBuCwXbio/PZL81FCXx8 LqQnb3okD+y58vgzgNjUjhNYxNFSj2lnyBQN10nsfuaJhwebMhwv1DoxAU+zstoa fxv0DzD0huB6+8y6X5LlnMMRuBddevZOM7fY2mdvVxidk5g2S1rbVVkFVFsWpMJc nuudGfPDpVeNIK7ynoe0HTmOKzCIrk++wQf0G65kFy2fgkJbAK6VKDSBciwXV89f ehfmZz2prmimKQWJaYFvRx2Yt6+lQPb+sKWBo2VD+Ej3UDQNme9Kc66t7Ya1/QUB H2cCxdtaQe0czg25onwiQ1/mRTEH73pWMItCGykaz1VnT3wfODDJRsdA0zz9/Up1 cSjiCso7a7rcwyBcNLtX =eqXE -----END PGP SIGNATURE-----
Current thread:
- CVE request - Linux kernel - Fix handling of stored error in a negatively instantiated user key Wade Mealing (Dec 08)
- CVE request - Linux kernel - Fix handling of stored error in a negatively instantiated user key xiaoqixue_1 (Dec 09)
- CVE request - a out of bound read bug is found in libdwarf xiaoqixue_1 (Dec 09)
- Re: CVE request - a out of bound read bug is found in libdwarf cve-assign (Dec 09)
- CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) xiaoqixue_1 (Dec 10)
- Re: CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) Glenn Randers-Pehrson (Dec 10)
- Re: CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) Glenn Randers-Pehrson (Dec 17)
- Re: CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) cve-assign (Dec 11)
- Re: Re: CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) Glenn Randers-Pehrson (Dec 11)
- CVE request - a out of bound read bug is found in libdwarf xiaoqixue_1 (Dec 09)
- CVE request - Linux kernel - Fix handling of stored error in a negatively instantiated user key xiaoqixue_1 (Dec 09)