libslirp up to 4.3.0 SLiRP Networking icmp6_send_echoreply ICMP Echo Request out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in libslirp up to 4.3.0 and classified as problematic. Affected is the function icmp6_send_echoreply of the component SLiRP Networking. This manipulation as part of ICMP Echo Request causes out-of-bounds. This vulnerability appears as CVE-2020-10756. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in libslirp up to 4.3.0 and classified as problematic. Affected by this vulnerability is the function icmp6_send_echoreply of the component SLiRP Networking. The manipulation as part of a ICMP Echo Request leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.

The weakness was presented 07/09/2020 as Bug 1835986 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2020-10756 since 03/20/2020. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 209571 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.3.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209571). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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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Nessus ID: 209571
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libslirp 4.3.1

Timelineinfo

03/20/2020 🔍
07/09/2020 +111 days 🔍
07/10/2020 +1 days 🔍
10/26/2024 +1569 days 🔍

Sourcesinfo

Advisory: Bug 1835986
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-10756 (🔍)
GCVE (CVE): GCVE-0-2020-10756
GCVE (VulDB): GCVE-100-157783

Entryinfo

Created: 07/10/2020 08:05
Updated: 10/26/2024 17:11
Changes: 07/10/2020 08:05 (42), 07/10/2020 08:10 (17), 10/29/2020 09:49 (1), 10/26/2024 17:11 (20)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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