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Freebsd » Freebsd » 12.1 P4 * * : Security Vulnerabilities Published In 2021 (Overflow)

Cpe Name:cpe:2.3:o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*
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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2020-25583 120 Overflow 2021-03-29 2021-06-03
10.0
 None Remote Low Not required Complete Complete Complete
In FreeBSD 12.2-STABLE before r368250, 11.4-STABLE before r368253, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 when processing a DNSSL option, rtsold(8) decodes domain name labels per an encoding specified in RFC 1035 in which the first octet of each label contains the label's length. rtsold(8) did not validate label lengths correctly and could overflow the destination buffer.
2 CVE-2020-25577 120 Overflow 2021-03-29 2021-06-03
10.0
 None Remote Low Not required Complete Complete Complete
In FreeBSD 12.2-STABLE before r368250, 11.4-STABLE before r368253, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 rtsold(8) does not verify that the RDNSS option does not extend past the end of the received packet before processing its contents. While the kernel currently ignores such malformed packets, it passes them to userspace programs. Any programs expecting the kernel to do validation may be vulnerable to an overflow.
3 CVE-2020-7461 787 Exec Code Overflow 2021-03-26 2021-09-16
7.5
 None Remote Low Not required Partial Partial Partial
In FreeBSD 12.1-STABLE before r365010, 11.4-STABLE before r365011, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, dhclient(8) fails to handle certain malformed input related to handling of DHCP option 119 resulting a heap overflow. The heap overflow could in principle be exploited to achieve remote code execution. The affected process runs with reduced privileges in a Capsicum sandbox, limiting the immediate impact of an exploit.
Total number of vulnerabilities : 3   Page : 1 (This Page)
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