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Vulnerability of libsoup: out-of-bounds memory reading via soup_ntlm_parse_challenge

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via soup_ntlm_parse_challenge() of libsoup, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable products: Ubuntu.
Severity of this weakness: 2/4.
Creation date: 10/10/2019.
Références of this bulletin: CVE-2019-17266, USN-4152-1, VIGILANCE-VUL-30594.

Description of the vulnerability 

An attacker can force a read at an invalid address via soup_ntlm_parse_challenge() of libsoup, in order to trigger a denial of service, or to obtain sensitive information.
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This computer weakness impacts software or systems such as Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability note is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this cybersecurity threat.

Solutions for this threat 

Ubuntu: new libsoup2.4-1 packages.
New packages are available:
  Ubuntu 19.04: libsoup2.4-1 2.66.1-1ubuntu0.1
  Ubuntu 18.04 LTS: libsoup2.4-1 2.62.1-1ubuntu0.4
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Vigil@nce provides an application vulnerability announce. The technology watch team tracks security threats targeting the computer system.