MGASA-2019-0343 - Updated libssh2 packages fix security vulnerability

Publication date: 30 Nov 2019
URL: https://advisories.mageia.org/MGASA-2019-0343.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2019-17498

The updated packages fix a security vulnerability:

In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in
packet.c has an integer overflow in a bounds check, enabling an attacker
to specify an arbitrary (out-of-bounds) offset for a subsequent memory
read. A crafted SSH server may be able to disclose sensitive information
or cause a denial of service condition on the client system when a user
connects to the server. (CVE-2019-17498)

References:
- https://bugs.mageia.org/show_bug.cgi?id=25704
- https://www.debian.org/lts/security/2019/dla-1991
- https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943562
- https://security-tracker.debian.org/tracker/CVE-2019-17498
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17498

SRPMS:
- 7/core/libssh2-1.8.2-1.1.mga7

Mageia 2019-0343: libssh2 security update

The updated packages fix a security vulnerability: In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enab...

Summary

The updated packages fix a security vulnerability:
In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. (CVE-2019-17498)

References

- https://bugs.mageia.org/show_bug.cgi?id=25704

- https://www.debian.org/lts/security/2019/dla-1991

- https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html

- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943562

- https://security-tracker.debian.org/tracker/CVE-2019-17498

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17498

Resolution

MGASA-2019-0343 - Updated libssh2 packages fix security vulnerability

SRPMS

- 7/core/libssh2-1.8.2-1.1.mga7

Severity
Publication date: 30 Nov 2019
URL: https://advisories.mageia.org/MGASA-2019-0343.html
Type: security
CVE: CVE-2019-17498

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