CVE-2021-22947

Name
CVE-2021-22947
Description
When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got *before* the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-through the TLS traffic from the legitimate server and trick curl into sending data back to the user thinking the attacker's injected data comes from the TLS-protected server.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://hackerone.com/reports/1334763
MLIST https://lists.debian.org/debian-lts-announce/2021/09/msg00022.html
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/
MISC https://www.oracle.com/security-alerts/cpuoct2021.html
CONFIRM https://security.netapp.com/advisory/ntap-20211029-0003/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/
Patch https://www.oracle.com/security-alerts/cpujan2022.html
Patch https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
Release Notes https://support.apple.com/kb/HT213183
Third Party Advisory http://seclists.org/fulldisclosure/2022/Mar/29
MISC https://www.oracle.com/security-alerts/cpuapr2022.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* curl >= 7.20.0 < 7.79.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status