Multiple vulnerabilities in Linux kernel



| Updated: 2020-08-11
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2010-4251
CVE-2010-4263
CWE-ID CWE-400
CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU45023

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2010-4251

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The socket implementation in net/core/sock.c in the Linux kernel before 2.6.34 does not properly manage a backlog of received packets, which allows remote attackers to cause a denial of service (memory consumption) by sending a large amount of network traffic, as demonstrated by netperf UDP tests.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.33.20

CPE2.3 External links

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8eae939f1400326b06d0c9afe53d2a484a326871
https://kerneltrap.org/mailarchive/linux-netdev/2010/3/3/6271093/thread
https://secunia.com/advisories/46397
https://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
https://www.securityfocus.com/archive/1/520102/100/0/threaded
https://www.securityfocus.com/bid/46637
https://www.vmware.com/security/advisories/VMSA-2011-0012.html
https://bugzilla.redhat.com/show_bug.cgi?id=657303


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.

2) NULL pointer dereference

EUVDB-ID: #VU45438

Risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2010-4263

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a VLAN tagged frame.

Mitigation

Update to version 2.6.34.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.33.20

CPE2.3 External links

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=31b24b955c3ebbb6f3008a6374e61cf7c05a193c
https://openwall.com/lists/oss-security/2010/12/06/3
https://openwall.com/lists/oss-security/2010/12/06/9
https://secunia.com/advisories/42884
https://secunia.com/advisories/42890
https://secunia.com/advisories/46397
https://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
https://www.redhat.com/support/errata/RHSA-2011-0007.html
https://www.redhat.com/support/errata/RHSA-2011-0017.html
https://www.securityfocus.com/archive/1/520102/100/0/threaded
https://www.securityfocus.com/bid/45208
https://www.vmware.com/security/advisories/VMSA-2011-0012.html
https://bugzilla.kernel.org/show_bug.cgi?id=15582
https://bugzilla.redhat.com/show_bug.cgi?id=660188


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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