Linux Kernel 2.6.23 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel 2.6.23. The impacted element is an unknown function. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2010-2521. There is not any exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.23 (Operating System). It has been rated as very critical. This issue affects an unknown code. 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 confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in fs/nfsd/nfs4xdr.c in the XDR implementation in the NFS server in the Linux kernel before 2.6.34-rc6 allow remote attackers to cause a denial of service (panic) or possibly execute arbitrary code via a crafted NFSv4 compound WRITE request, related to the read_buf and nfsd4_decode_compound functions.

The issue has been introduced in 10/09/2007. The weakness was released 09/07/2010 with Red Hat (Website). It is possible to read the advisory at rhn.redhat.com. The identification of this vulnerability is CVE-2010-2521. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/29/2024).

The vulnerability was handled as a non-public zero-day exploit for at least 1064 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 63960 (RHEL 5 : kernel (RHSA-2010:0907)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165605 (SUSE Enterprise Linux Security Update Kernel (SUSE-SA:2010:038)).

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 (63960), SecurityFocus (BID 42249†), SecurityTracker (ID 1024286†) and Vulnerability Center (SBV-26754†). Entries connected to this vulnerability are available at VDB-54610 and VDB-54608. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 63960
Nessus Name: RHEL 5 : kernel (RHSA-2010:0907)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 67981
OpenVAS Name: Debian Security Advisory DSA 2094-1 (linux-2.6)
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: 🔍

Patch: 2bc3c1179c781b359d4f2f3439cb3df72afc17fc

Timelineinfo

10/09/2007 🔍
06/30/2010 +994 days 🔍
08/05/2010 +36 days 🔍
08/05/2010 +0 days 🔍
08/10/2010 +5 days 🔍
09/07/2010 +28 days 🔍
09/07/2010 +0 days 🔍
01/24/2013 +870 days 🔍
03/19/2015 +784 days 🔍
12/29/2024 +3573 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2010:0907
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-2521 (🔍)
GCVE (CVE): GCVE-0-2010-2521
GCVE (VulDB): GCVE-100-54611

OVAL: 🔍

SecurityFocus: 42249 - Linux Kernel XDR Implementation Local Buffer Overflow Vulnerability
Secunia: 43315
SecurityTracker: 1024286
Vulnerability Center: 26754 - The Linux Kernel XDR Implementation Local DoS or Arbitrary Code Execution Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/19/2015 14:37
Updated: 12/29/2024 14:58
Changes: 03/19/2015 14:37 (62), 03/02/2017 11:06 (10), 09/24/2021 09:58 (7), 09/24/2021 10:00 (1), 09/24/2021 10:01 (2), 12/29/2024 14:58 (21)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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