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CVE-2020-29129

MEDIUM
4.3
CVSS Score
Published: November 26, 2020 at 07:03 PM UTC
Updated: June 17, 2026 at 03:11 AM UTC
3 products affected across 3 vendorsDebian LinuxFedoraLibslirp

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Severity
MEDIUM4.3
Exploit prediction
EPSS 1%

Description

ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (5)

Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2020/11/27/1
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/45S5IHSWYITJKMRT23HCHJQDI674AMTQ/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPCOHDEONMHH6QPJZKRLLCNRGRYODG7X/
x_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://lists.freedesktop.org/archives/slirp/2020-November/000115.html

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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