CVE-2023-49062

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Katran could disclose non-initialized kernel memory as part of an IP header. The issue was present for IPv4 encapsulation and ICMP (v4) Too Big packet generation. After a bpf_xdp_adjust_head call, Katran code didn’t initialize the Identification field for the IPv4 header, resulting in writing content of kernel memory in that field of IP header. The issue affected all Katran versions prior to commit 6a03106ac1eab39d0303662963589ecb2374c97f

Katran podría revelar memoria del kernel no inicializada como parte de un encabezado IP. El problema estaba presente en la encapsulación IPv4 y en la generación de paquetes ICMP (v4) Too Big. Después de una llamada a bpf_xdp_adjust_head, el código Katran no inicializó el campo de identificación para el encabezado IPv4, lo que resultó en la escritura del contenido de la memoria del kernel en ese campo del encabezado IP. El problema afectó a todas las versiones de Katran antes del commit 6a03106ac1eab39d0303662963589ecb2374c97f

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-11-20 CVE Reserved
2023-11-28 CVE Published
2023-12-05 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-665: Improper Initialization

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/facebookincubator/katran/commit/6a03106ac1eab39d0303662963589ecb2374c97f	2023-12-04

URL	Date	SRC
https://www.facebook.com/security/advisories/cve-2023-49062	2023-12-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Facebook Search vendor "Facebook"		Katran Search vendor "Facebook" for product "Katran"				< 2023-11-15 Search vendor "Facebook" for product "Katran" and version " < 2023-11-15"		-		Affected