VDB-108315 · CVE-2011-1935 · GCVE-0-2011-1935

libpcap up to 1.1.0 pcap-linux.c Crafted Packet data processing

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.
8.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in libpcap up to 1.1.0. This impacts an unknown function of the file pcap-linux.c. Performing a manipulation as part of Crafted Packet results in data processing. This vulnerability is known as CVE-2011-1935. Remote exploitation of the attack is possible. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical has been found in libpcap up to 1.1.0. This affects an unknown code of the file pcap-linux.c. The manipulation as part of a Crafted Packet leads to a data processing vulnerability. CWE is classifying the issue as CWE-19. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

pcap-linux.c in libpcap 1.1.1 before commit ea9432fabdf4b33cbc76d9437200e028f1c47c93 when snaplen is set may truncate packets, which might allow remote attackers to send arbitrary data while avoiding detection via crafted packets.

The bug was discovered 05/09/2011. The weakness was published 10/20/2017 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2011-1935 since 05/09/2011. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2356 days. During that time the estimated underground price was around $0-$5k.

Applying the patch ea9432fabdf4b33cbc76d9437200e028f1c47c93 is able to eliminate this problem.

Similar entries are available at VDB-108316, VDB-108545, VDB-108544 and VDB-112647. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

libpcap

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ea9432fabdf4b33cbc76d9437200e028f1c47c93

Timelineinfo

05/09/2011 🔍
05/09/2011 +0 days 🔍
10/20/2017 +2356 days 🔍
10/20/2017 +0 days 🔍
10/23/2017 +3 days 🔍
11/28/2019 +766 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1935 (🔍)
GCVE (CVE): GCVE-0-2011-1935
GCVE (VulDB): GCVE-100-108315
See also: 🔍

Entryinfo

Created: 10/23/2017 09:03
Updated: 11/28/2019 14:35
Changes: 10/23/2017 09:03 (60), 11/28/2019 14:35 (1)
Complete: 🔍
Cache ID: 216:482:103

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