First published: Mon Apr 12 2021(Updated: )
Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file. Upstream issue: <a href="https://github.com/upx/upx/issues/48">https://github.com/upx/upx/issues/48</a> Upstream patch: <a href="https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc">https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc</a>
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
UPX | =4.0.0 | |
Red Hat Enterprise Linux | =7.0 | |
Fedoraproject Fedora | =33 |
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The vulnerability ID for this issue is CVE-2021-30500.
The severity of CVE-2021-30500 is high.
The affected software of CVE-2021-30500 includes UPX 4.0.0, Redhat Enterprise Linux 7.0, and Fedoraproject Fedora 33.
Attackers can exploit CVE-2021-30500 by executing arbitrary code and causing a denial of service via a crafted file.
Yes, you can refer to the following links for more information: [Link 1](https://bugzilla.redhat.com/show_bug.cgi?id=1948692), [Link 2](https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc), [Link 3](https://github.com/upx/upx/issues/485).