High severity · published Dec 14, 2020
CVE-2020-8231
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data
7.5
CVSS
5.3%
EPSS
No
On KEV
Description
Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.3% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HT
https://github.com/curl/curl ·
libcurl 7.29.0 to and including 7.71.1 · source: vendor
CC
Communications Cloud Native Core Policy · Oracle
1.14.0 · source: NVD
DL
Debian Linux · Debian
10.0 · source: NVD
LI
Libcurl · Haxx
7.29.0 through 7.71.1 · source: NVD
SI
Sinec Infrastructure Network Services · Siemens
before 1.0.1.1 · source: NVD
UF
Universal Forwarder · Splunk
8.2.0 before 8.2.12; 9.0.0 before 9.0.6; 9.1.0 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8231
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8231
Patch
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
Patch
https://curl.haxx.se/docs/CVE-2020-8231.html
Exploit
https://hackerone.com/reports/948876
Mailing List
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
Mailing List
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
Third Party Advisory
https://security.gentoo.org/glsa/202012-14
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