CVE-2020-25577

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 rtsold8 does not verify that the RDNSS option does not extend past the end of the received packet before processing its contents. While the kernel currentl...

CVE-2020-25577

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 rtsold8 does not verify that the RDNSS option does not extend past the end of the received packet before processing its contents. While the kernel currentl...

CVE-2020-25583

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, rtsold8 decodes domain name labels per an encoding specified in RFC 1035 in which the first octet of each label contains th...

CVE-2020-25583

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, rtsold8 decodes domain name labels per an encoding specified in RFC 1035 in which the first octet of each label contains th...

Buffer overflow

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 rtsold8 does not verify that the RDNSS option does not extend past the end of the received packet before processing its contents. While the kernel currentl...

Buffer overflow

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, rtsold8 decodes domain name labels per an encoding specified in RFC 1035 in which the first octet of each label contains th...

CVE-2020-25583

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, rtsold8 decodes domain name labels per an encoding specified in RFC 1035 in which the first octet of each label contains th...

CVE-2020-25583

CVE-2020-25583 affects FreeBSD rtsold(8) handling of DNSSL and RDNSS options. The issue arises from insufficient bounds checking and incorrect validation of label lengths when decoding domain name labels (RFC 1035 encoding) in the DNSSL option, which could overflow the destination buffer. Affecte...

CVE-2020-25577

CVE-2020-25577 affects FreeBSD rtsold: insufficient bounds checking on RDNSS option extent (and related DNSSL handling) can allow malformed Router Advertisement data to flow to userspace, potentially enabling remote code execution in rtsold(8). Affects multiple FreeBSD branches (stable/11, stable...

CVE-2020-25577

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 rtsold8 does not verify that the RDNSS option does not extend past the end of the received packet before processing its contents. While the kernel currentl...

FreeBSD : OpenSSL -- Multiple vulnerabilities (5a668ab3-8d86-11eb-b8d6-d4c9ef517024)

The OpenSSL project reports : High: CA certificate check bypass with X509VFLAGX509STRICT CVE-2021-3450The X509VFLAGX509STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. High: NULL pointer deref in signaturealgorithms...

FreeBSD : samba -- Multiple Vulnerabilities (1f6d97da-8f72-11eb-b3f1-005056a311d1)

The Samba Team reports : - CVE-2020-27840: An anonymous attacker can crash the Samba AD DC LDAP server by sending easily crafted DNs as part of a bind request. More serious heap corruption is likely also possible. - CVE-2021-20277: User-controlled LDAP filter strings against the AD DC LDAP server...

Freebsd FreeBSD 安全漏洞

FreeBSD is a set of Unix-like operating systems from the Freebsd Foundation. A security vulnerability exists in FreeBSD 12.2-STABLE, which stems from a failure to properly validate tag lengths, resulting in an overflow of the target buffer. The following products and releases are affected: FreeBS...

FreeBSD : nettle 3.7.2 -- fix serious ECDSA signature verify bug (80f9dbd3-8eec-11eb-b9e8-3525f51429a0)

Niels Moller reports : I've prepared a new bug-fix release of Nettle, a low-level cryptographics library, to fix a serious bug in the function to verify ECDSA signatures. Implications include an assertion failure, which could be used for denial-of-service, when verifying signatures on the secp224...

CVE-2020-7467

In FreeBSD 12.2-STABLE before r365767, 11.4-STABLE before r365769, 12.1-RELEASE before p10, 11.4-RELEASE before p4 and 11.3-RELEASE before p14 a number of AMD virtualization instructions operate on host physical addresses, are not subject to nested page table translation, and guest use of these...

CVE-2020-7468

In FreeBSD 12.2-STABLE before r365772, 11.4-STABLE before r365773, 12.1-RELEASE before p10, 11.4-RELEASE before p4 and 11.3-RELEASE before p14 a ftpd8 bug in the implementation of the file system sandbox, combined with capabilities available to an authenticated FTP user, can be used to escape the...

CVE-2020-7461

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, dhclient8 fails to handle certain malformed input related to handling of DHCP option 119 resulting a heap overflow. The heap overflow could in principle ...

CVE-2020-7463

In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r364651, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, improper handling in the kernel causes a use-after-free bug by sending large user messages from multiple threads on the same SCTP socket. The...

CVE-2020-7464

In FreeBSD 12.2-STABLE before r365730, 11.4-STABLE before r365738, 12.1-RELEASE before p10, 11.4-RELEASE before p4, and 11.3-RELEASE before p14, a programming error in the ure4 device driver caused some Realtek USB Ethernet interfaces to incorrectly report packets with more than 2048 bytes in a...

CVE-2020-7461

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, dhclient8 fails to handle certain malformed input related to handling of DHCP option 119 resulting a heap overflow. The heap overflow could in principle ...