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Ubuntu Security Notice USN-5702-2

Ubuntu Security Notice 5702-2 - USN-5702-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Robby Simpson discovered that curl incorrectly handled certain POST operations after PUT operations. This issue could cause applications using curl to send the wrong data, perform incorrect memory operations, or crash.

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=========================================================================Ubuntu Security Notice USN-5702-2October 26, 2022curl vulnerability=========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 16.04 ESM- Ubuntu 14.04 ESMSummary:curl could crash if it received a specially crafted POSToperations after PUT operations.Software Description:- curl: HTTP, HTTPS, and FTP client and client librariesDetails:USN-5702-1 fixed a vulnerability in curl. This update providesthe corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.Original advisory details: Robby Simpson discovered that curl incorrectly handled certain POST operations after PUT operations. This issue could cause applications using curl to send the wrong data, perform incorrect memory operations, or crash. (CVE-2022-32221)Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 16.04 ESM:  curl                            7.47.0-1ubuntu2.19+esm6  libcurl3                        7.47.0-1ubuntu2.19+esm6  libcurl3-gnutls                 7.47.0-1ubuntu2.19+esm6  libcurl3-nss                    7.47.0-1ubuntu2.19+esm6Ubuntu 14.04 ESM:  curl                            7.35.0-1ubuntu2.20+esm13  libcurl3                        7.35.0-1ubuntu2.20+esm13  libcurl3-gnutls                 7.35.0-1ubuntu2.20+esm13  libcurl3-nss                    7.35.0-1ubuntu2.20+esm13In general, a standard system update will make all the necessary changes.References:  https://ubuntu.com/security/notices/USN-5702-2  https://ubuntu.com/security/notices/USN-5702-1  CVE-2022-32221

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CVE-2022-32221

When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same handle previously was used to issue a `PUT` request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the subsequent `POST` request. The problem exists in the logic for a reused handle when it is changed from a PUT to a POST.

Ubuntu Security Notice USN-5702-1

Ubuntu Security Notice 5702-1 - Robby Simpson discovered that curl incorrectly handled certain POST operations after PUT operations. This issue could cause applications using curl to send the wrong data, perform incorrect memory operations, or crash. Hiroki Kurosawa discovered that curl incorrectly handled parsing .netrc files. If an attacker were able to provide a specially crafted .netrc file, this issue could cause curl to crash, resulting in a denial of service. This issue only affected Ubuntu 22.10.

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