Out-of-bounds read in Tcpreplay - CVE-2020-12740
Published: June 1, 2021
Vulnerability identifier: #VU53697
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-12740
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to heap-based buffer over-read during a get_c operation. The issue is being triggered in the function get_ipv6_next() at common/get.c. A remote attacker can perform a denial of service attack.
Affected software
Tcpreplay
Arch Linux
Fedora
tcpreplay
Arch Linux
Fedora
tcpreplay
How to mitigate CVE-2020-12740
Install update from vendor's website.
Tcpreplay - update to 4.3.3
tcpreplay - update to 4.3.3-1
tcpreplay - addressed in versions 4.3.3-1.el6, 4.3.3-1.el7, 4.3.3-1.el8, 4.3.3-1.fc31, 4.3.3-1.fc32
tcpreplay - update to 4.3.3-1
tcpreplay - addressed in versions 4.3.3-1.el6, 4.3.3-1.el7, 4.3.3-1.el8, 4.3.3-1.fc31, 4.3.3-1.fc32
External References
- https://github.com/appneta/tcpreplay/issues/576
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4YAT4AGTHQKB74ETOQPJMV67TSDIAPOC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOSEIQ3D2OONCJEVMGC2TYBC2QX4E5EJ/