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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2021-43311
HistoryMar 24, 2023 - 8:15 p.m.

CVE-2021-43311

2023-03-2420:15:08
Debian Security Bug Tracker
security-tracker.debian.org
5
heap-based
buffer overflow
upx
generic pointer
inaccessible address
packlinuxelf32
elf_lookup
p_lx_elf.cpp

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

31.9%

A heap-based buffer overflow 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:5382.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

31.9%