Multiple vulnerabilities in Linux kernel

1) Out-of-bounds write

EUVDB-ID: #VU44880

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2010-4656

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local authenticated user to execute arbitrary code.

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.36.4

External links

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3ed780117dbe5acb64280d218f0347f238dafed0
http://openwall.com/lists/oss-security/2011/01/24/9
http://openwall.com/lists/oss-security/2011/01/25/3
http://openwall.com/lists/oss-security/2011/01/25/4
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
http://www.securityfocus.com/bid/46069
http://www.ubuntu.com/usn/USN-1146-1
http://bugzilla.redhat.com/show_bug.cgi?id=672420

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Integer underflow

EUVDB-ID: #VU45456

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2010-4529

CWE-ID: CWE-191 - Integer underflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

Integer underflow in the irda_getsockopt function in net/irda/af_irda.c in the Linux kernel before 2.6.37 on platforms other than x86 allows local users to obtain potentially sensitive information from kernel heap memory via an IRLMP_ENUMDEVICES getsockopt call.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.36.4

External links

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fdac1e0697356ac212259f2147aa60c72e334861
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html
http://openwall.com/lists/oss-security/2010/12/23/1
http://openwall.com/lists/oss-security/2011/01/03/1
http://secunia.com/advisories/42684
http://secunia.com/advisories/43291
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
http://www.securityfocus.com/bid/45556
http://www.spinics.net/lists/netdev/msg150842.html
http://www.vupen.com/english/advisories/2011/0375

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.