Multiple vulnerabilities in Linux kernel
| 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 Subscribe |
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
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2010-4251
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe 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.
MitigationInstall update from vendor's website.
Vulnerable software versionsLinux kernel: 2.6.0 - 2.6.33.20
External linkshttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8eae939f1400326b06d0c9afe53d2a484a326871
http://kerneltrap.org/mailarchive/linux-netdev/2010/3/3/6271093/thread
http://secunia.com/advisories/46397
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
http://www.securityfocus.com/archive/1/520102/100/0/threaded
http://www.securityfocus.com/bid/46637
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
http://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
CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2010-4263
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe 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.
MitigationUpdate to version 2.6.34.
Vulnerable software versionsLinux kernel: 2.6.0 - 2.6.33.20
External linkshttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=31b24b955c3ebbb6f3008a6374e61cf7c05a193c
http://openwall.com/lists/oss-security/2010/12/06/3
http://openwall.com/lists/oss-security/2010/12/06/9
http://secunia.com/advisories/42884
http://secunia.com/advisories/42890
http://secunia.com/advisories/46397
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
http://www.redhat.com/support/errata/RHSA-2011-0007.html
http://www.redhat.com/support/errata/RHSA-2011-0017.html
http://www.securityfocus.com/archive/1/520102/100/0/threaded
http://www.securityfocus.com/bid/45208
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
http://bugzilla.kernel.org/show_bug.cgi?id=15582
http://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.
