Debian LTS: DLA-3797-1: frr Security Advisory Updates
Summary
Several vulnerabilities have been found in frr, the FRRouting suite of
internet protocols. An attacker could craft packages to trigger buffer
overflows with the possibility to gain remote code execution, buffer
overreads, crashes or trick the software to enter an infinite loop.
CVE-2022-26125
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to
wrong checks on the input packet length in isisd/isis_tlvs.c.
CVE-2022-26126
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to
the use of strdup with a non-zero-terminated binary string in
isis_nb_notifications.c.
CVE-2022-26127
A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to
missing a check on the input packet length in the babel_packet_examin
function in babeld/message.c.
CVE-2022-26128
A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to
a wrong check on the input packet length in the babel_packet_examin
function in babeld/message.c.
CVE-2022-26129
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to
wrong checks on the subtlv length in the functions, parse_hello_subtlv,
parse_ihu_subtlv, and parse_update_subtlv in babeld/message.c.
CVE-2022-37035
An issue was discovered in bgpd in FRRouting (FRR) 8.3. In
bgp_notify_send_with_data() and bgp_process_packet() in bgp_packet.c,
there is a possible use-after-free due to a race condition. This could
lead to Remote Code Execution or Information Disclosure by sending
crafted BGP packets. User interaction is not needed for exploitation.
CVE-2023-38406
bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri
length of zero, aka a "flowspec overflow."
CVE-2023-38407
bgpd/bgp_label.c in FRRouting (FRR) before 8.5 attempts to read beyond
the end of the stream during labeled unicast parsing.
CVE-2023-46752
An issue was discovered in FRRouting FRR through 9.0.1. It mishandles
malformed MP_REACH_NLRI data, leading to a crash.
CVE-2023-46753
An issue was discovered in FRRouting FRR through 9.0.1. A crash can
occur for a crafted BGP UPDATE message without mandatory attributes,
e.g., one with only an unknown transit attribute.
CVE-2023-47234
An issue was discovered in bgpd in FRRouting (FRR) 8.3. In
bgp_notify_send_with_data() and bgp_process_packet() in bgp_packet.c,
there is a possible use-after-free due to a race condition. This could
lead to Remote Code Execution or Information Disclosure by sending
crafted BGP packets. User interaction is not needed for exploitation.
CVE-2023-47235
An issue was discovered in FRRouting FRR through 9.0.1. A crash can
occur when a malformed BGP UPDATE message with an EOR is processed,
because the presence of EOR does not lead to a treat-as-withdraw
outcome.
CVE-2024-31948
In FRRouting (FRR) through 9.1, an attacker using a malformed Prefix SID
attribute in a BGP UPDATE packet can cause the bgpd daemon to crash.
CVE-2024-31949
In FRRouting (FRR) through 9.1, an infinite loop can occur when
receiving a MP/GR capability as a dynamic capability because malformed
data results in a pointer not advancing.
For Debian 10 buster, these problems have been fixed in version
7.5.1-1.1+deb10u2.
We recommend that you upgrade your frr packages.
For the detailed security status of frr please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/frr
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
