Bug 54976 – sys-kernel/* Privilege escalation bugs revealed by Sparse tool

• Product: Gentoo Security
• Status: RESOLVED FIXED

[Description Thierry Carrez (RETIRED) 2004-06-24 01:23:18 UTC]

From the RedHat advisory (http://rhn.redhat.com/errata/RHSA-2004-260.html):

Enhancements were committed to the 2.6 kernel by Al Viro which enabled the
Sparse source code checking tool to check for a certain class of kernel
bugs. A subset of these fixes also applies to various drivers in the 2.4
kernel. These flaws could lead to privilege escalation or access to kernel
memory. The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2004-0495 to these issues.

[Comment 1 Tim Yamin (RETIRED) 2004-06-25 15:17:09 UTC]

*** Bug 54977 has been marked as a duplicate of this bug. ***

[Comment 2 Tim Yamin (RETIRED) 2004-06-25 15:18:19 UTC]

------- Merging Comment #0 From Bug #54977 2004-06-24 01:26 PST -------

From the Mandrake advisory
(http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:062):

A vulnerability in the e1000 driver for the Linux kernel 2.4.26 and
earlier was discovered by Chris Wright.  The e1000 driver does not
properly reset memory or restrict the maximum length of a data
structure, which can allow a local user to read portions of kernel
memory (CAN-2004-0535).

[Comment 3 Tim Yamin (RETIRED) 2004-06-25 15:23:58 UTC]

Most things should now be patched; adding externally maintained sources on to the CC lists for kernels which need patching for both CAN-2004-0495 and CAN-2004-0535:

sys-kernel/grsec-sources - Adding solar...
sys-kernel/hardened-sources - Adding hardened...
sys-kernel/hardened-dev-sources - Same as above...
sys-kernel/hppa-dev-sources - Adding GMSoft; this just needs 2.6.7 stable.
sys-kernel/hppa-sources - Adding GMSoft; this needs patching.
sys-kernel/openmosix-sources - Adding cluster...
sys-kernel/pegasos-sources - Adding dholm...
sys-kernel/rsbac-dev-sources - Adding kang...

[Comment 4 solar (RETIRED) 2004-06-25 21:52:37 UTC]

../../gentoo-sources/files/gentoo-sources-2.4.CAN-2004-0495.patch
../../gentoo-sources/files/gentoo-sources-2.4.CAN-2004-0535.patch
Above added to grsec-sources/files/
Updated digests and verified a clean src_unpack.
Added ChangeLog references to this bug.
Unable to verify runtime at this point in time.

[Comment 5 David Holm (RETIRED) 2004-06-27 13:49:54 UTC]

pegasos-sources has been updated

[Comment 6 Tim Yamin (RETIRED) 2004-06-29 09:25:54 UTC]

Hardened-dev-sources is OK now; it's been bumped to 2.6.7.

[Comment 7 Tim Yamin (RETIRED) 2004-06-29 09:27:07 UTC]

Adding `Kumba for mips-sources...

[Comment 8 Kurt Lieber (RETIRED) 2004-06-29 10:01:02 UTC]

belatedly adding Chris for selinux-sources.

[Comment 9 Andrea Luzzardi 2004-06-29 10:36:24 UTC]

hardened-sources updated

[Comment 10 Chris PeBenito (RETIRED) 2004-06-29 11:03:25 UTC]

selinux-src fixed

[Comment 11 SpanKY 2004-06-29 15:43:42 UTC]

hppa-dev-sources is stable now

[Comment 12 Brandon Hale (RETIRED) 2004-06-29 22:36:44 UTC]

hardened-dev-sources-2.6.7 marked ~x86 ~ppc ~amd64
it only has a stable version on amd64. This might be a good time
for arch testing :)

[Comment 13 Guillaume Destuynder (RETIRED) 2004-06-30 06:00:16 UTC]

- rsbac-sources: fixed CAN 0535/0495
- rsbac-dev-sources: is using kernel 2.6.7

sorry for the little delay, cvs was buggy and today update fixed things so that i could upload finally a new rsbac-sources.

[Comment 14 Konstantin Arkhipov (RETIRED) 2004-06-30 07:36:24 UTC]

openmosix-sources: fixed in -r10, will be unmasked soon.
(patches taken from gentoo-sources, tested)

[Comment 15 Joshua Kinard 2004-07-01 16:40:54 UTC]

Added to mips-sources

[Comment 16 Guy Martin (RETIRED) 2004-07-03 15:18:54 UTC]

Stable on hppa.

[Comment 17 Tim Yamin (RETIRED) 2004-07-03 16:05:28 UTC]

GLSA 200407-02; http://article.gmane.org/gmane.linux.gentoo.announce/382; closing as FIXED.