Linux Kernel up to 5.0.11 net/ipv4/udp_offload.c udp_gro_receive_segment UDP Packet resource management

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.0.11. The impacted element is the function udp_gro_receive_segment of the file net/ipv4/udp_offload.c. This manipulation as part of UDP Packet causes resource management. This vulnerability is tracked as CVE-2019-11683. The attack is possible to be carried out remotely. No exploit exists. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.0.11 (Operating System). Affected by this vulnerability is the function udp_gro_receive_segment of the file net/ipv4/udp_offload.c. The manipulation as part of a UDP Packet leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

udp_gro_receive_segment in net/ipv4/udp_offload.c in the Linux kernel 5.x through 5.0.11 allows remote attackers to cause a denial of service (slab-out-of-bounds memory corruption) or possibly have unspecified other impact via UDP packets with a 0 payload, because of mishandling of padded packets, aka the "GRO packet of death" issue.

The bug was discovered 05/03/2019. The weakness was disclosed 05/02/2019 (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2019-11683 since 05/02/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 197461 (Ubuntu Security Notification for Linux, Linux-aws, Linux-azure, Linux-gcp, Linux-kvm, Linux-raspi2 Vulnerabilities (USN-3979-1)).

Proper firewalling of udp is able to address this issue.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 108142†). The entries VDB-131275, VDB-132215 and VDB-133262 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

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: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org
Firewalling: 🔍

Timelineinfo

05/02/2019 🔍
05/02/2019 +0 days 🔍
05/02/2019 +0 days 🔍
05/02/2019 +0 days 🔍
05/03/2019 +1 days 🔍
09/11/2023 +1592 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3979-1⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-11683 (🔍)
GCVE (CVE): GCVE-0-2019-11683
GCVE (VulDB): GCVE-100-134317
SecurityFocus: 108142 - Linux Kernel CVE-2019-11683 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 05/02/2019 21:43
Updated: 09/11/2023 16:39
Changes: 05/02/2019 21:43 (64), 06/05/2020 16:27 (5), 09/11/2023 16:39 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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