Medium severity5.5NVD Advisory· Published Aug 18, 2022· Updated Jun 17, 2026

CVE-2020-27788

Description

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Upx/Upx3 versions
cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*range: <3.96
- (no CPE)
- (no CPE)

Patches

Vulnerability mechanics

References

github.com/upx/upx/commit/1bb93d4fce9f1d764ba57bf5ac154af515b3fc83nvdPatchThird Party Advisory
github.com/upx/upx/issues/332nvdExploitIssue TrackingPatchThird Party Advisory

News mentions

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