FreeBSD up to 11.1 setrlimit memory corruption

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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in FreeBSD up to 11.1. This issue affects the function setrlimit. The manipulation results in memory corruption. This vulnerability is known as CVE-2017-1085. Attacking locally is a requirement. Furthermore, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in FreeBSD up to 11.1 (Operating System). Affected is the function setrlimit. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In FreeBSD before 11.2-RELEASE, an application which calls setrlimit() to increase RLIMIT_STACK may turn a read-only memory region below the stack into a read-write region. A specially crafted executable could be exploited to execute arbitrary code in the user context.

The bug was discovered 06/19/2017. The weakness was published 09/12/2018 with Qualys as EDB-ID 42279 as not defined exploit (Exploit-DB). The advisory is available at exploit-db.com. This vulnerability is traded as CVE-2017-1085 since 11/29/2016. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

After immediately, there has been an exploit disclosed. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 450 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370433 (FreeBSD Advisory for kernel/ glibc Elevation of Privileges (Stack Clash)).

Upgrading to version 11.2-RELEASE eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (42279) and SecurityFocus (BID 99130†). Similar entries are available at VDB-102671, VDB-102673, VDB-123928 and VDB-123929. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: FreeBSD 11.2-RELEASE

Timelineinfo

11/29/2016 🔍
06/19/2017 +201 days 🔍
06/19/2017 +0 days 🔍
09/12/2018 +449 days 🔍
09/12/2018 +0 days 🔍
09/12/2018 +0 days 🔍
09/12/2018 +0 days 🔍
09/13/2018 +1 days 🔍
07/11/2024 +2128 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: EDB-ID 42279
Organization: Qualys
Status: Not defined

CVE: CVE-2017-1085 (🔍)
GCVE (CVE): GCVE-0-2017-1085
GCVE (VulDB): GCVE-100-123930
SecurityFocus: 99130 - Linux Kernel CVE-2017-1000364 Local Memory Corruption Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 09/13/2018 07:01
Updated: 07/11/2024 05:51
Changes: 09/13/2018 07:01 (72), 03/23/2020 08:03 (4), 07/11/2024 05:51 (18)
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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