Vulnerability Details : CVE-2021-43315
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:5349
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-43315
- cpe:2.3:a:upx_project:upx:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43315
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 36 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43315
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-43315
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: patrick@puiterwijk.org (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-43315
-
https://github.com/upx/upx/issues/380
[bug] multi heap buffer overflows in get_le32() · Issue #380 · upx/upx · GitHubExploit;Issue Tracking;Patch
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