MGASA-2019-0139 - Updated libssh2 packages fix security vulnerability

Publication date: 10 Apr 2019
URL: https://advisories.mageia.org/MGASA-2019-0139.html
Type: security
Affected Mageia releases: 6
CVE: CVE-2019-3855,
     CVE-2019-3856,
     CVE-2019-3857,
     CVE-2019-3858,
     CVE-2019-3859,
     CVE-2019-3860,
     CVE-2019-3861,
     CVE-2019-3862,
     CVE-2019-3863

Possible integer overflow in transport read allows out-of-bounds write.
(CVE-2019-3855)

Possible integer overflow in keyboard interactive handling allows
out-of-bounds write. (CVE-2019-3856)

Possible integer overflow leading to zero-byte allocation and
out-of-bounds write. (CVE-2019-3857)

Possible zero-byte allocation leading to an out-of-bounds read.
(CVE-2019-3858)

Out-of-bounds reads with specially crafted payloads due to unchecked use
of `_libssh2_packet_require` and `_libssh2_packet_requirev`.
(CVE-2019-3859)

Out-of-bounds reads with specially crafted SFTP packets. (CVE-2019-3860)

Out-of-bounds reads with specially crafted SSH packets. (CVE-2019-3861)

Out-of-bounds memory comparison. (CVE-2019-3862)

Integer overflow in user authenicate keyboard interactive allows
out-of-bounds writes. (CVE-2019-3863)

References:
- https://bugs.mageia.org/show_bug.cgi?id=24532
- https://www.openwall.com/lists/oss-security/2019/03/18/3
- http://lists.suse.com/pipermail/sle-security-updates/2019-March/005203.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3855
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3856
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3857
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3858
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3859
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3860
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3861
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3862
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3863

SRPMS:
- 6/core/libssh2-1.7.0-2.1.mga6

Mageia 2019-0139: libssh2 security update

Possible integer overflow in transport read allows out-of-bounds write

Summary

Possible integer overflow in transport read allows out-of-bounds write. (CVE-2019-3855)
Possible integer overflow in keyboard interactive handling allows out-of-bounds write. (CVE-2019-3856)
Possible integer overflow leading to zero-byte allocation and out-of-bounds write. (CVE-2019-3857)
Possible zero-byte allocation leading to an out-of-bounds read. (CVE-2019-3858)
Out-of-bounds reads with specially crafted payloads due to unchecked use of `_libssh2_packet_require` and `_libssh2_packet_requirev`. (CVE-2019-3859)
Out-of-bounds reads with specially crafted SFTP packets. (CVE-2019-3860)
Out-of-bounds reads with specially crafted SSH packets. (CVE-2019-3861)
Out-of-bounds memory comparison. (CVE-2019-3862)
Integer overflow in user authenicate keyboard interactive allows out-of-bounds writes. (CVE-2019-3863)

References

- https://bugs.mageia.org/show_bug.cgi?id=24532

- https://www.openwall.com/lists/oss-security/2019/03/18/3

- http://lists.suse.com/pipermail/sle-security-updates/2019-March/005203.html

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3855

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3856

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3857

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3858

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3859

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3860

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3861

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3862

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3863

Resolution

MGASA-2019-0139 - Updated libssh2 packages fix security vulnerability

SRPMS

- 6/core/libssh2-1.7.0-2.1.mga6

Severity
Publication date: 10 Apr 2019
URL: https://advisories.mageia.org/MGASA-2019-0139.html
Type: security
CVE: CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3858, CVE-2019-3859, CVE-2019-3860, CVE-2019-3861, CVE-2019-3862, CVE-2019-3863

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