Memcached up to 1.4.36 items.c item_free integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Memcached up to 1.4.36. This impacts the function item_free of the file items.c. Such manipulation leads to integer overflow. This vulnerability is traded as CVE-2018-1000127. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Memcached up to 1.4.36. Affected by this issue is the function item_free of the file items.c. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

memcached version prior to 1.4.37 contains an Integer Overflow vulnerability in items.c:item_free() that can result in data corruption and deadlocks due to items existing in hash table being reused from free list. This attack appear to be exploitable via network connectivity to the memcached service. This vulnerability appears to have been fixed in 1.4.37 and later.

The bug was discovered 04/28/2017. The weakness was shared 03/13/2018 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2018-1000127 since 03/13/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 319 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110386 (Debian DSA-4218-1 : memcached - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176401 (Debian Security Update for memcached (DSA 4218-1)).

Upgrading to version 1.4.37 eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (110386). The entry VDB-114085 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: 110386
Nessus Name: Debian DSA-4218-1 : memcached - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 855371
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1329-1] memcached security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Memcached 1.4.37
Patch: github.com

Timelineinfo

04/28/2017 🔍
03/13/2018 +319 days 🔍
03/13/2018 +0 days 🔍
03/13/2018 +0 days 🔍
03/14/2018 +1 days 🔍
06/06/2018 +84 days 🔍
06/07/2018 +1 days 🔍
02/21/2023 +1720 days 🔍

Sourcesinfo

Product: github.com

Advisory: RHSA-2018:2290
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-1000127 (🔍)
GCVE (CVE): GCVE-0-2018-1000127
GCVE (VulDB): GCVE-100-114464

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 03/14/2018 07:55
Updated: 02/21/2023 15:10
Changes: 03/14/2018 07:55 (75), 01/13/2020 08:43 (3), 02/21/2023 15:10 (5)
Complete: 🔍
Cache ID: 216::103

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