libslirp 4.1.0 tcp_subr.c tcp_emu out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in libslirp 4.1.0 and classified as critical. The impacted element is the function tcp_emu of the file tcp_subr.c. Such manipulation leads to out-of-bounds write. This vulnerability is referenced as CVE-2020-7039. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in libslirp 4.1.0 and classified as critical. Affected by this issue is the function tcp_emu of the file tcp_subr.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.

The weakness was published 01/16/2020 (oss-sec). The advisory is available at openwall.com. This vulnerability is handled as CVE-2020-7039 since 01/14/2020. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 208583 (CentOS 7 : qemu-kvm-ma (RHSA-2020:1150)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (208583). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • libslirp 4.1.0
  • QEMU 4.2.0

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 9.8
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 write
CWE: CWE-787 / 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: 208583
Nessus Name: CentOS 7 : qemu-kvm-ma (RHSA-2020:1150)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: gitlab.freedesktop.org

Timelineinfo

01/14/2020 🔍
01/16/2020 +2 days 🔍
01/17/2020 +1 days 🔍
10/15/2024 +1733 days 🔍

Sourcesinfo

Advisory: RHSA-2020:0348
Status: Not defined

CVE: CVE-2020-7039 (🔍)
GCVE (CVE): GCVE-0-2020-7039
GCVE (VulDB): GCVE-100-149090

Entryinfo

Created: 01/17/2020 07:00
Updated: 10/15/2024 15:43
Changes: 01/17/2020 07:00 (38), 01/17/2020 07:05 (17), 03/24/2024 14:40 (18), 10/15/2024 15:43 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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