CVE-2026-18938 - P11-kit: integer overflow in rpc attribute-array length calculation can under-allocate nested attribute storage on 32 bit systems

CVE-2026-18938 - P11-kit: integer overflow in rpc attribute-array length calculation can under-allocate nested attribute storage on 32 bit systems

https://cvefeed.io/rssfeed/latest.atom / Fri, 08/07/2026 - 13:09
CVE ID :CVE-2026-18938
Published : Aug. 7, 2026, 8:19 a.m. | 1 hour, 8 minutes ago
Description :A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.
Severity: 6.2 | MEDIUM
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