Buffer overflow in Upx
CVE-2019-20053
An invalid memory address dereference was discovered in the canUnpack function in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Upx — versions 3.95
- openSUSE Backports — versions sle-15
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
References
- github.com/upx/upx/issues/314 (Exploit, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-02/msg00003.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-02/msg00007.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20053?
- CVE-2019-20053 is a medium-severity vulnerability in Upx, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2019-12-27.
- How severe is CVE-2019-20053?
- Medium severity. CVSS v3 base score is 5.5 out of 10.