CVE-2021-22897
curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library.
Does this matter?
Lower severity and a low EPSS score (2.98%). Track it; it rarely justifies an emergency change on its own.
Description
curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single "static" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 2.98% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-840, CWE-668
- Affected
- haxx/curl · oracle/communications cloud native core binding support function · oracle/communications cloud native core network function cloud native environment · oracle/communications cloud native core network repository function · oracle/communications cloud native core network slice selection function · oracle/communications cloud native core service communication proxy · oracle/essbase · oracle/mysql server · netapp/cloud backup · netapp/solidfire\, enterprise sds \& hci storage node · netapp/solidfire \& hci management node · netapp/solidfire baseboard management controller firmware · netapp/hci compute node firmware · netapp/h300e firmware · netapp/h300s firmware · netapp/h410s firmware · netapp/h500e firmware · netapp/h500s firmware · netapp/h700e firmware · netapp/h700s firmware · +2 more
- Source
- support@hackerone.com
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
- https://curl.se/docs/CVE-2021-22897.htmlPatch, Vendor Advisory
- https://github.com/curl/curl/commit/bbb71507b7bab52002f9b1e0880bed6a32834511Patch, Third Party Advisory
- https://hackerone.com/reports/1172857Exploit, Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210727-0007/Third Party Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
- https://curl.se/docs/CVE-2021-22897.htmlPatch, Vendor Advisory
- https://github.com/curl/curl/commit/bbb71507b7bab52002f9b1e0880bed6a32834511Patch, Third Party Advisory
- https://hackerone.com/reports/1172857Exploit, Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210727-0007/Third Party Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://hackerone.com/reports/1172857Exploit, Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.