Medium severity · published May 3, 2023
CVE-2022-43681
An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4
6.5
CVSS
2.1%
EPSS
No
On KEV
Description
An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0; 11.0; 12.0 · source: NVD
FR
Frrouting · Frrouting
through 8.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-43681
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-43681
Third Party Advisory
https://forescout.com
Mailing List
https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html
Third Party Advisory
https://www.debian.org/security/2023/dsa-5495
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