UPX 3.95 p_lx_elf.cpp PackLinuxElf64::unpack double free

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in UPX 3.95. This affects the function PackLinuxElf64::unpack of the file p_lx_elf.cpp. Executing a manipulation can lead to double free. This vulnerability appears as CVE-2018-11243. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in UPX 3.95. It has been declared as critical. This vulnerability affects the function PackLinuxElf64::unpack of the file p_lx_elf.cpp. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

PackLinuxElf64::unpack in p_lx_elf.cpp in UPX 3.95 allows remote attackers to cause a denial of service (double free), limit the ability of a malware scanner to operate on the entire original data, or possibly have unspecified other impact via a crafted file.

The bug was discovered 05/18/2018. The weakness was presented 05/18/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-11243 since 05/18/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

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

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Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

05/18/2018 🔍
05/18/2018 +0 days 🔍
05/18/2018 +0 days 🔍
05/18/2018 +0 days 🔍
05/19/2018 +1 days 🔍
04/11/2025 +2519 days 🔍

Sourcesinfo

Product: github.com

Advisory: 206
Status: Not defined

CVE: CVE-2018-11243 (🔍)
GCVE (CVE): GCVE-0-2018-11243
GCVE (VulDB): GCVE-100-117988

Entryinfo

Created: 05/19/2018 09:13
Updated: 04/11/2025 15:35
Changes: 05/19/2018 09:13 (56), 02/07/2020 20:35 (1), 03/14/2023 11:04 (3), 03/14/2023 11:10 (1), 04/11/2025 15:35 (15)
Complete: 🔍
Cache ID: 216::103

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