CVE-2021-22924

low
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.

References

https://hackerone.com/reports/1223565

https://lists.fedoraproject.org/archives/list/[email protected]/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/

https://lists.debian.org/debian-lts-announce/2021/08/msg00017.html

https://lists.apache.org/thread.html/[email protected]%3Cdev.kafka.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.kafka.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cdev.kafka.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.kafka.apache.org%3E

https://security.netapp.com/advisory/ntap-20210902-0003/

https://www.oracle.com/security-alerts/cpuoct2021.html

Details

Source: MITRE

Published: 2021-08-05

Updated: 2021-12-10

Type: CWE-706

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 3.7

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 2.2

Severity: LOW

Tenable Plugins

View all (25 total)

IDNameProductFamilySeverity
155491EulerOS Virtualization 2.9.0 : curl (EulerOS-SA-2021-2769)NessusHuawei Local Security Checks
medium
155489EulerOS Virtualization 2.9.1 : curl (EulerOS-SA-2021-2751)NessusHuawei Local Security Checks
medium
155263EulerOS 2.0 SP9 : curl (EulerOS-SA-2021-2707)NessusHuawei Local Security Checks
medium
155117EulerOS 2.0 SP9 : curl (EulerOS-SA-2021-2682)NessusHuawei Local Security Checks
medium
153633EulerOS 2.0 SP8 : curl (EulerOS-SA-2021-2457)NessusHuawei Local Security Checks
medium
153539CentOS 8 : curl (CESA-2021:3582)NessusCentOS Local Security Checks
low
153534Oracle Linux 8 : curl (ELSA-2021-3582)NessusOracle Linux Local Security Checks
low
153525RHEL 8 : curl (RHSA-2021:3582)NessusRed Hat Local Security Checks
low
153416Amazon Linux 2 : curl (ALAS-2021-1700)NessusAmazon Linux Local Security Checks
medium
153160Amazon Linux AMI : curl (ALAS-2021-1525)NessusAmazon Linux Local Security Checks
low
152547Debian DLA-2734-1 : curl - LTS security updateNessusDebian Local Security Checks
low
152092Photon OS 1.0: Curl PHSA-2021-1.0-0417NessusPhotonOS Local Security Checks
medium
152084Photon OS 2.0: Curl PHSA-2021-2.0-0372NessusPhotonOS Local Security Checks
medium
152083Photon OS 3.0: Curl PHSA-2021-3.0-0273NessusPhotonOS Local Security Checks
medium
152082Photon OS 4.0: Curl PHSA-2021-4.0-0069NessusPhotonOS Local Security Checks
medium
152065openSUSE 15 Security Update : curl (openSUSE-SU-2021:1088-1)NessusSuSE Local Security Checks
critical
152060SUSE SLED12 / SLES12 Security Update : curl (SUSE-SU-2021:2462-1)NessusSuSE Local Security Checks
critical
152002Ubuntu 18.04 LTS / 20.04 LTS / 21.04 : curl vulnerabilities (USN-5021-1)NessusUbuntu Local Security Checks
medium
151994SUSE SLES12 Security Update : curl (SUSE-SU-2021:2425-1)NessusSuSE Local Security Checks
critical
151993SUSE SLES11 Security Update : curl (SUSE-SU-2021:14768-1)NessusSuSE Local Security Checks
critical
151992SUSE SLES15 Security Update : curl (SUSE-SU-2021:2440-1)NessusSuSE Local Security Checks
critical
151990SUSE SLED15 / SLES15 Security Update : curl (SUSE-SU-2021:2439-1)NessusSuSE Local Security Checks
critical
151971FreeBSD : cURL -- Multiple vulnerabilities (aa646c01-ea0d-11eb-9b84-d4c9ef517024)NessusFreeBSD Local Security Checks
medium
151970Slackware 14.0 / 14.1 / 14.2 / current : curl (SSA:2021-202-02)NessusSlackware Local Security Checks
critical
151940openSUSE 15 Security Update : curl (openSUSE-SU-2021:2439-1)NessusSuSE Local Security Checks
critical