CVE-2012-4502

Description

Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service (crash) via a crafted (1) REQ_SUBNETS_ACCESSED or (2) REQ_CLIENT_ACCESSES command request to the PKL_CommandLength function or crafted (3) RPY_SUBNETS_ACCESSED, (4) RPY_CLIENT_ACCESSES, (5) RPY_CLIENT_ACCESSES_BY_INDEX, or (6) RPY_MANUAL_LIST command reply to the PKL_ReplyLength function, which triggers an out-of-bounds read or buffer overflow. NOTE: versions 1.27 and 1.28 do not require authentication to exploit.

Risk Information

Base Score

9.1

MODERATE

Vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS Score

Exploitation Probability

0.838

Associated Vulnerability

Vulnerability	OS Platform
chrony security update(DSA-3222-1) chrony_1.24-3.1+deb7u3_i386.deb	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234