CVE-2026-103242
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
39/100
Published: 2026-09-30
Modified: 2026-11-13
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Auth
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
None
I:
High
A:
High
Description
A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.
Weakness Classification (1)
References & Advisories (3)
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT