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Secunia Security Advisory 46539

Secunia Security Advisory 46539
Posted Oct 21, 2011
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Ubuntu has issued an update for linux. This fixes some weaknesses and a vulnerability, which can be exploited by malicious people with physical access to compromise a vulnerable system and by malicious people to cause a DoS (Denial of Service).

tags | advisory, denial of service
systems | linux, ubuntu
SHA-256 | c1e5fb6d663be7cff2ec6985a0f8fdf51a0b4c55665edc0d99628967938f8fdd

Secunia Security Advisory 46539

Change Mirror Download
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Read the new report on the Secunia VIM:
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----------------------------------------------------------------------

TITLE:
Ubuntu update for linux

SECUNIA ADVISORY ID:
SA46539

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46539/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46539

RELEASE DATE:
2011-10-21

DISCUSS ADVISORY:
http://secunia.com/advisories/46539/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/46539/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=46539

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Ubuntu has issued an update for linux. This fixes some weaknesses and
a vulnerability, which can be exploited by malicious people with
physical access to compromise a vulnerable system and by malicious
people to cause a DoS (Denial of Service).

1) A boundary error when handling string descriptors during new
device probes in the "auerswald_probe()" function
(drivers/usb/misc/auerswald.c) can be exploited to cause a buffer
overflow by inserting a malicious USB device.

Successful exploitation of this vulnerability may allow the execution
of arbitrary code.

2) An error within the "sctp_make_init()" and "sctp_make_init_ack()"
functions when calculating the INIT/INIT-ACK chunk length can be
exploited to cause a kernel oops by sending specially crafted SCTP
packets.

Successful exploitation of this weakness requires that
"net.sctp.addip_enable" is enabled.

SOLUTION:
Apply updated packages.

Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

PROVIDED AND/OR DISCOVERED BY:
1) R. Dominguez Vega, MWR InfoSecurity.
2) George Cheimonidis in a bug report.

ORIGINAL ADVISORY:
USN-1236-1:
http://www.ubuntu.com/usn/usn-1236-1/

MWR InfoSecurity:
http://labs.mwrinfosecurity.com/files/Advisories/mwri_linux-usb-buffer-overflow_2009-10-29.pdf

linux GIT:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a8170c35e738d62e9919ce5b109cf4ed66e95bde

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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