View at Official debian advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2021-43311 unimportant priority: Debian including 1 source packages (upx-ucl), 4 status rows across 4 suites (bullseye, forky, sid, trixie): resolved 3, open 1.
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.