Vulnerability Details : CVE-2020-27788
An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service.
Vulnerability category: Denial of service
Products affected by CVE-2020-27788
- cpe:2.3:a:upx_project:upx:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-27788
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-27788
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2020-27788
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2020-27788
-
https://github.com/upx/upx/commit/1bb93d4fce9f1d764ba57bf5ac154af515b3fc83
Detect bad e_shstrtab better. · upx/upx@1bb93d4 · GitHubPatch;Third Party Advisory
-
https://github.com/upx/upx/issues/332
heap-buffer-overflow in PackLinuxElf64::canPack() at p_lx_elf.cpp:2385 · Issue #332 · upx/upx · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
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