Google Chrome up to 2.0.172 Javascript Regexp memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in Google Chrome and classified as very critical. Affected by this vulnerability is an unknown functionality of the component Javascript Regexp Handler. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2009-2121. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Google Chrome (Web Browser). It has been classified as very critical. This affects an unknown part of the component Javascript Regexp Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the browser kernel in Google Chrome before 2.0.172.33 allows remote HTTP servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted response.

The weakness was presented 07/17/2009 with Google (Website). The advisory is shared at googlechromereleases.blogspot.com. This vulnerability is uniquely identified as CVE-2009-2121. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/06/2025). It is expected to see the exploit prices for this product increasing in the near future.

We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 39492 (Google Chrome < 2.0.172.33 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116512 (Google Chrome HTTP Response Buffer Overflow Vulnerability).

Upgrading eliminates this vulnerability. The upgrade is hosted for download at chrome.google.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at googlechromereleases.blogspot.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8687.

The vulnerability is also documented in the databases at X-Force (51307), Tenable (39492), SecurityFocus (BID 35462†), OSVDB (55278†) and Secunia (SA35548†). See VDB-3992 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 39492
Nessus Name: Google Chrome < 2.0.172.33 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 900380
OpenVAS Name: Google Chrome Web Script Execution Vulnerabilites - Jun09
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: chrome.google.com
Patch: googlechromereleases.blogspot.com
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

06/19/2009 🔍
06/22/2009 +3 days 🔍
06/22/2009 +0 days 🔍
06/22/2009 +0 days 🔍
06/23/2009 +1 days 🔍
06/23/2009 +0 days 🔍
06/23/2009 +0 days 🔍
06/29/2009 +5 days 🔍
07/17/2009 +18 days 🔍
07/17/2009 +0 days 🔍
04/06/2025 +5742 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: googlechromereleases.blogspot.com
Organization: Google
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-2121 (🔍)
GCVE (CVE): GCVE-0-2009-2121
GCVE (VulDB): GCVE-100-3993
X-Force: 51307
SecurityFocus: 35462 - Google Chrome HTTP Response Handling Remote Code Execution Vulnerability
Secunia: 35548 - Google Chrome HTTP Response Buffer Overflow Vulnerability, Highly Critical
OSVDB: 55278 - Google Chrome Unspecified HTTP Response Handling Overflow
Vulnerability Center: 22718 - Google Chrome Prior to 2.0.172.33 Remote Arbitrary Code Execution and DoS Vulnerability, High

See also: 🔍

Entryinfo

Created: 07/17/2009 18:07
Updated: 04/06/2025 15:42
Changes: 07/17/2009 18:07 (77), 02/10/2017 12:03 (11), 03/17/2021 11:00 (4), 03/17/2021 11:06 (1), 04/06/2025 15:42 (18)
Complete: 🔍
Committer: stfr
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!