CVE-2022-45061
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.007 Low
EPSS
Percentile
79.6%
An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.
Affected configurations
References
github.com/python/cpython/issues/98433
lists.debian.org/debian-lts-announce/2023/05/msg00024.html
lists.debian.org/debian-lts-announce/2023/06/msg00039.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2AOUKI72ACV6CHY2QUFO6VK2DNMVJ2MB/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35YDIWCUMWTMDBWFRAVENFH6BLB65D6S/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4WBZJNSALFGMPYTINIF57HAAK46U72WQ/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/63FS6VHY4DCS74HBTEINUDOECQ2X6ZCH/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WQPHKGNXUJC3TC3BDW5RKGROWRJVSFR/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B3YI6JYARWU6GULWOHNUROSACT54XFFS/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4MYQ3IV6NWA4CKSXEHW45CH2YNDHEPH/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BWJREJHWVRBYDP43YB5WRL3QC7UBA7BR/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTPVDZDATRQFE6KAT6B4BQIQ4GRHIIIJ/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IN26PWZTYG6IF3APLRXQJBVACQHZUPT2/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCDJXNBHWXNYUTOEV4H2HCFSRKV3SYL3/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTYVESWVBPD57ZJC35G5722Q6TS37WSB/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KNE4GMD45RGC2HWUAAIGTDHT5VJ2E4O4/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKWAMPURWUV3DCCT4J7VHRF4NT2CFVBR/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O67LRHDTJWH544KXB6KY4HMHQLYDXFPK/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ORVCQGJCCAVLN4DJDTWGREFCUWXKQRML/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLQ2BNZVBBAQPV3SPRU24ZD37UYJJS7W/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCKD4AFBHXIMHS64ZER2U7QRT33HNE7L/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QLUGZSEAO3MBWGKCUSMKQIRYJZKJCIOB/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDK3ZZBRYFO47ET3N4BNTKVXN47U6ICY/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RH57BNT4VQERGEJ5SXNXSVMDYP66YD4H/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTN2OOLKYTG34DODUEJGT5MLC2PFGPBA/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T3D5TX4TDJPXHXD2QICKTY3OCQC3JARP/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHVW73QZJMHA4MK7JBT7CXX7XSNYQEGF/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCMDX6IFKLOA3NXUQEV524L5LHTPI2JI/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3EJ6J7PXVQOULBQZQGBXCXY6LFF6LZD/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXZJL3CNAFS5PAIR7K4RL62S3Y7THR7O/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPNWZKXPKTNHS5FVMN7UQZ2UPCSEFJUK/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZB5YCMIRVX35RUB6XPOWKENCVCJEVDRK/
security.gentoo.org/glsa/202305-02
security.netapp.com/advisory/ntap-20221209-0007/
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.007 Low
EPSS
Percentile
79.6%