- -------------------------------------------------------------------------
Debian LTS Advisory DLA-2773-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                    Thorsten Alteholz
September 30, 2021                            https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : curl
Version        : 7.52.1-5+deb9u16
CVE ID         : CVE-2021-22946 CVE-2021-22947


Two issues have been found in curl, a command line tool and an easy-to-use 
client-side library for transferring data with URL syntax.

CVE-2021-22946
      Crafted answers from a server might force clients to not use TLS on
      connections though TLS was required and expected.

CVE-2021-22947
      When using STARTTLS to initiate a TLS connection, the server might
      send multiple answers before the TLS upgrade and such the client
      would handle them as being trusted. This could be used by a
      MITM-attacker to inject fake response data.


For Debian 9 stretch, these problems have been fixed in version
7.52.1-5+deb9u16.

We recommend that you upgrade your curl packages.

For the detailed security status of curl please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/curl

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

Debian LTS: DLA-2773-1: curl security update

September 30, 2021
Two issues have been found in curl, a command line tool and an easy-to-use client-side library for transferring data with URL syntax

Summary

Two issues have been found in curl, a command line tool and an easy-to-use
client-side library for transferring data with URL syntax.

CVE-2021-22946
Crafted answers from a server might force clients to not use TLS on
connections though TLS was required and expected.

CVE-2021-22947
When using STARTTLS to initiate a TLS connection, the server might
send multiple answers before the TLS upgrade and such the client
would handle them as being trusted. This could be used by a
MITM-attacker to inject fake response data.


For Debian 9 stretch, these problems have been fixed in version
7.52.1-5+deb9u16.

We recommend that you upgrade your curl packages.

For the detailed security status of curl please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/curl

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS



Severity
Package : curl
Version : 7.52.1-5+deb9u16
CVE ID : CVE-2021-22946 CVE-2021-22947

Related News

23.Tablet Connections Esm H320
2 - 3 min read
The release of Ubuntu 24.04 LTS , also known as Noble Numbat, brings various security enhancements and exciting new features . These improvements
4.Lock AbstractDigital Esm H320
2 - 3 min read
Tails 6.2 is a new Linux distribution release that expands its multilingual support and improves security features. The distribution is a
19.Laptop Bed Esm H320
2 - 3 min read
AlmaLinux 9.4 beta has been released and provides compelling reasons to consider it for desktop usage. While AlmaLinux is primarily known as a
32.Lock Code Circular Esm H320
2 - 3 min read
Linux admins and security practitioners face significant challenges in keeping their Linux systems secure amidst the constant threat of kernel bugs.
1.Penguin Landscape Esm H320
2 - 3 min read
A significant security threat, known as the Spectre v2 exploit, has been observed targeting Linux systems running on modern Intel processors. Let's
10.FingerPrint Locks Esm H320
2 - 3 min read
The recent release of I2P 2.5.0 , an anonymous P2P network that protects against online censorship, surveillance, and monitoring, has brought a slew
24.Key Code Esm H320
2 - 3 min read
The Akira ransomware group has extorted approximately $42 million from over 250 victims since January 1, 2024. The group initially focused on
5.ShakingHands Esm H320
2 - 3 min read
At The Linux Foundation's Open Source Summit North America , Linus Torvalds, the creator of Linux, discussed various topics related to Linux
Sign Up

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved