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Ubuntu Security Notice USN-5587-1

Ubuntu Security Notice USN-5587-1
Posted Sep 2, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5587-1 - Axel Chong discovered that when curl accepted and sent back cookies containing control bytes that a HTTP server might return a 400 response. A malicious cookie host could possibly use this to cause denial-of-service.

tags | advisory, web
systems | linux, ubuntu
advisories | CVE-2022-35252
SHA-256 | 783a742776e8641f029cc9092320eefeccee3992879f509b5e40616d136ea495

Ubuntu Security Notice USN-5587-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5587-1
September 01, 2022

curl vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

curl could be denied access to a HTTP(S) content if it recieved
a specially crafted cookie.

Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries

Details:

Axel Chong discovered that when curl accepted and sent back
cookies containing control bytes that a HTTP(S) server might
return a 400 (Bad Request Error) response. A malicious cookie
host could possibly use this to cause denial-of-service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS:
curl 7.81.0-1ubuntu1.4
libcurl3-gnutls 7.81.0-1ubuntu1.4
libcurl3-nss 7.81.0-1ubuntu1.4
libcurl4 7.81.0-1ubuntu1.4

Ubuntu 20.04 LTS:
curl 7.68.0-1ubuntu2.13
libcurl3-gnutls 7.68.0-1ubuntu2.13
libcurl3-nss 7.68.0-1ubuntu2.13
libcurl4 7.68.0-1ubuntu2.13

Ubuntu 18.04 LTS:
curl 7.58.0-2ubuntu3.20
libcurl3-gnutls 7.58.0-2ubuntu3.20
libcurl3-nss 7.58.0-2ubuntu3.20
libcurl4 7.58.0-2ubuntu3.20

Ubuntu 16.04 ESM:
curl 7.47.0-1ubuntu2.19+esm5
libcurl3 7.47.0-1ubuntu2.19+esm5
libcurl3-gnutls 7.47.0-1ubuntu2.19+esm5
libcurl3-nss 7.47.0-1ubuntu2.19+esm5

Ubuntu 14.04 ESM:
curl 7.35.0-1ubuntu2.20+esm12
libcurl3 7.35.0-1ubuntu2.20+esm12
libcurl3-gnutls 7.35.0-1ubuntu2.20+esm12
libcurl3-nss 7.35.0-1ubuntu2.20+esm12

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5587-1
CVE-2022-35252

Package Information:
https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.4
https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.13
https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.20
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