CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.0 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in Sophos Anti-Virus 5.1 (Anti-Malware Software). Affected by this issue is an unknown function. The manipulation with an unknown input leads to a memory allocation vulnerability. Using CWE to declare the problem leads to CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. Impacted is availability. CVE summarizes:
Sophos Anti-Virus 5.1 allows remote attackers to cause a denial of service (memory consumption) via a file that is compressed with Petite and contains a large number of sections.
The bug was discovered 10/27/2006. The weakness was presented 11/01/2006 by Damian Put (Website). The advisory is shared for download at labs.idefense.com. This vulnerability is handled as CVE-2006-4839 since 09/15/2006. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.
The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $5k-$25k.
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 vulnerability database at X-Force (29918). See 2642, 2641, 2644 and 2643 for similar entries.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.0
VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory allocationCWE: CWE-789 / CWE-400 / CWE-404
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
09/15/2006 🔍10/27/2006 🔍
10/27/2006 🔍
10/30/2006 🔍
10/30/2006 🔍
10/30/2006 🔍
11/01/2006 🔍
11/01/2006 🔍
09/04/2007 🔍
03/12/2015 🔍
07/25/2019 🔍
Sources
Vendor: sophos.comAdvisory: labs.idefense.com⛔
Researcher: Damian Put
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2006-4839 (🔍)
X-Force: 29918
SecurityTracker: 1017132
Vulnerability Center: 15981 - Sophos Anti-Virus 5.1 Remote DoS via a File Compressed with Petite, Medium
SecurityFocus: 20816 - Sophos Antivirus Multiple Denial of Service and Memory Corruption Vulnerabilities
Secunia: 22635
OSVDB: 30111 - CVE-2006-4839 - Sophos - Anti-Virus - Denial-Of-Service Issue
Vupen: ADV-2006-4239
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 03/12/2015 22:21Updated: 07/25/2019 11:54
Changes: 03/12/2015 22:21 (70), 07/25/2019 11:54 (3)
Complete: 🔍
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