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Package details: pkg:deb/ubuntu/curl@7.65.3-1ubuntu3.1
purl pkg:deb/ubuntu/curl@7.65.3-1ubuntu3.1
Next non-vulnerable version 7.68.0-1ubuntu2.7
Latest non-vulnerable version 7.68.0-1ubuntu2.7
Risk 4.1
Vulnerabilities affecting this package (13)
Vulnerability Summary Fixed by
VCID-2zq2-qsgf-aaaj
Aliases:
CVE-2021-22898
curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.
7.68.0-1ubuntu2.6
Affected by 2 other vulnerabilities.
VCID-61j5-aj1z-aaaq
Aliases:
CVE-2021-22924
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.
7.68.0-1ubuntu2.6
Affected by 2 other vulnerabilities.
VCID-6qjg-v45t-aaam
Aliases:
CVE-2021-22925
curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.
7.68.0-1ubuntu2.6
Affected by 2 other vulnerabilities.
VCID-9ndg-1sj3-aaab
Aliases:
CVE-2020-8284
7.68.0-1ubuntu2.4
Affected by 9 other vulnerabilities.
VCID-a5a7-essu-aaah
Aliases:
CVE-2020-8286
curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.
7.68.0-1ubuntu2.4
Affected by 9 other vulnerabilities.
VCID-dz47-c3tm-aaap
Aliases:
CVE-2021-22890
7.68.0-1ubuntu2.5
Affected by 6 other vulnerabilities.
VCID-gk8w-7smm-aaac
Aliases:
CVE-2021-22947
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.
7.68.0-1ubuntu2.7
Affected by 0 other vulnerabilities.
VCID-j8eq-c91u-aaan
Aliases:
CVE-2021-22945
When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.
7.68.0-1ubuntu2.6
Affected by 2 other vulnerabilities.
VCID-mjks-tkp5-aaar
Aliases:
CVE-2021-22946
A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.
7.68.0-1ubuntu2.7
Affected by 0 other vulnerabilities.
VCID-njss-xaxg-aaab
Aliases:
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.
7.68.0-1ubuntu2.2
Affected by 12 other vulnerabilities.
VCID-tz5z-xncu-aaaf
Aliases:
CVE-2021-22901
curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session ticket arrives over a connection. A malicious server can use this in rare unfortunate circumstances to potentially reach remote code execution in the client. When libcurl at run-time sets up support for TLS 1.3 session tickets on a connection using OpenSSL, it stores pointers to the transfer in-memory object for later retrieval when a session ticket arrives. If the connection is used by multiple transfers (like with a reused HTTP/1.1 connection or multiplexed HTTP/2 connection) that first transfer object might be freed before the new session is established on that connection and then the function will access a memory buffer that might be freed. When using that memory, libcurl might even call a function pointer in the object, making it possible for a remote code execution if the server could somehow manage to get crafted memory content into the correct place in memory.
7.68.0-1ubuntu2.5
Affected by 6 other vulnerabilities.
VCID-wjdy-shr9-aaah
Aliases:
CVE-2020-8285
curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing.
7.68.0-1ubuntu2.4
Affected by 9 other vulnerabilities.
VCID-wyw1-r84q-aaac
Aliases:
CVE-2021-22876
7.68.0-1ubuntu2.5
Affected by 6 other vulnerabilities.
Vulnerabilities fixed by this package (2)
Vulnerability Summary Aliases
VCID-5t39-fany-aaan curl 7.20.0 through 7.70.0 is vulnerable to improper restriction of names for files and other resources that can lead too overwriting a local file when the -J flag is used. CVE-2020-8177
VCID-nn2j-we1s-aaaa curl 7.62.0 through 7.70.0 is vulnerable to an information disclosure vulnerability that can lead to a partial password being leaked over the network and to the DNS server(s). CVE-2020-8169

Date Actor Action Vulnerability Source VulnerableCode Version