Red Hat Enterprise Virtualization Hypervisor 2.6.18 napi_reuse_skb memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Red Hat Enterprise Virtualization Hypervisor 2.6.18. Affected is the function napi_reuse_skb. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2011-1576. There is no exploit available.

Detailsinfo

A vulnerability was found in Red Hat Enterprise Virtualization Hypervisor 2.6.18 (Virtualization Software). It has been rated as critical. This issue affects the function napi_reuse_skb. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. The summary by CVE is:

The Generic Receive Offload (GRO) implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux 5 and 2.6.32 on Red Hat Enterprise Linux 6, as used in Red Hat Enterprise Virtualization (RHEV) Hypervisor and other products, allows remote attackers to cause a denial of service via crafted VLAN packets that are processed by the napi_reuse_skb function, leading to (1) a memory leak or (2) memory corruption, a different vulnerability than CVE-2011-1478.

The weakness was shared 08/31/2011 by ryan as Bug 695173 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2011-1576. The attack can only be done within the local network. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/04/2024).

The vulnerability scanner Nessus provides a plugin with the ID 68421 (Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2011-2025)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165581 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2011:046)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (68421), SecurityFocus (BID 48907†), SecurityTracker (ID 1025853†) and Vulnerability Center (SBV-32445†). The entries VDB-60026 and VDB-60020 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 68421
Nessus Name: Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2011-2025)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 880545
OpenVAS Name: CentOS Update for kernel CESA-2011:0927 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/05/2011 🔍
07/15/2011 +101 days 🔍
07/19/2011 +4 days 🔍
07/28/2011 +9 days 🔍
08/31/2011 +34 days 🔍
08/31/2011 +0 days 🔍
07/12/2013 +681 days 🔍
03/23/2015 +619 days 🔍
08/04/2024 +3422 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: Bug 695173
Researcher: ryan
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1576 (🔍)
GCVE (CVE): GCVE-0-2011-1576
GCVE (VulDB): GCVE-100-58409

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 48907 - Red Hat Linux Kernel VLAN Packets Handling Remote Denial of Service Vulnerability
SecurityTracker: 1025853
Vulnerability Center: 32445 - Red Hat Linux Kernel Remote Denial of Service Vulnerability via VLAN Packets, High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 08/04/2024 15:20
Changes: 03/23/2015 16:50 (66), 03/28/2017 12:36 (10), 11/18/2021 14:34 (4), 11/18/2021 14:37 (1), 08/04/2024 15:20 (16)
Complete: 🔍
Cache ID: 216:BE5:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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