UPX p_lx_elf.cpp get_le32 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in UPX. Affected by this issue is the function get_le32 of the file p_lx_elf.cpp. The manipulation of the argument p leads to memory corruption. This vulnerability is traded as CVE-2021-43314. There is no exploit available.

Detailsinfo

A vulnerability was found in UPX (the affected version is unknown). It has been rated as critical. This issue affects the function get_le32 of the file p_lx_elf.cpp. The manipulation of the argument p with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf32::elf_lookup() at p_lx_elf.cpp:5368

The weakness was shared 03/25/2023 as 380. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-43314 since 11/03/2021. Technical details are known, 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.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
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: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/03/2021 🔍
03/25/2023 +507 days 🔍
03/25/2023 +0 days 🔍
04/11/2025 +748 days 🔍

Sourcesinfo

Product: github.com

Advisory: 380
Status: Confirmed

CVE: CVE-2021-43314 (🔍)
GCVE (CVE): GCVE-0-2021-43314
GCVE (VulDB): GCVE-100-223829

Entryinfo

Created: 03/25/2023 07:45
Updated: 04/11/2025 16:58
Changes: 03/25/2023 07:45 (39), 04/11/2025 16:58 (26)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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