VulnerabilityModified
CVE-2023-23456
A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file.
MEDIUM 5.5EPSS 0.39%
Does this matter?
Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own.
Description
A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 0.39% probability · 32th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- upx/upx · fedoraproject/fedora
- Source
- patrick@puiterwijk.org
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2160381Issue Tracking, Third Party Advisory
- https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4Patch, Third Party Advisory
- https://github.com/upx/upx/issues/632Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/
- https://bugzilla.redhat.com/show_bug.cgi?id=2160381Issue Tracking, Third Party Advisory
- https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4Patch, Third Party Advisory
- https://github.com/upx/upx/issues/632Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/12/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.