CVE-2022-49727
ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.5
References 8
git.kernel.org
- stable/c/2cf73c7cb6125083408d77f43d0e84d86aed0000
- stable/c/0e818d433fc2718fe4da044ffca7431812a7e04e
- stable/c/6c4e3486d21173d60925ef52e512cae727b43d30
- stable/c/2f42389d270f2304c8855b0b63498a5a4d0c053d
- stable/c/b8879ca1fd7348b4d5db7db86dcb97f60c73d751
- stable/c/27a37755ceb401111ded76810359d3adc4b268a1
- stable/c/034246122f5c5e2e2a0b9fe04e24517920e9beb1
- stable/c/f638a84afef3dfe10554c51820c16e39a278c915