Issued:
2019-08-07
Updated:
2019-08-07

RHSA-2019:2399 - Security Advisory

Synopsis

Important: libssh2 security update

Type/Severity

Security Advisory: Important

Topic

An update for libssh2 is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support, Red Hat Enterprise Linux 7.3 Telco Extended Update Support, and Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The libssh2 packages provide a library that implements the SSH2 protocol.

Security Fix(es):

  • libssh2: Integer overflow in transport read resulting in out of bounds write (CVE-2019-3855)
  • libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write (CVE-2019-3856)
  • libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write (CVE-2019-3857)
  • libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes (CVE-2019-3863)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing these updated packages, all running applications using libssh2 must be restarted for this update to take effect.

Affected Products

  • Red Hat Enterprise Linux Server - AUS 7.3 x86_64
  • Red Hat Enterprise Linux Server - TUS 7.3 x86_64
  • Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.3 ppc64le
  • Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.3 x86_64

Fixes

  • BZ - 1687303 - CVE-2019-3855 libssh2: Integer overflow in transport read resulting in out of bounds write
  • BZ - 1687304 - CVE-2019-3856 libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write
  • BZ - 1687305 - CVE-2019-3857 libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write
  • BZ - 1687313 - CVE-2019-3863 libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes

CVEs

References

Red Hat Enterprise Linux Server - AUS 7.3

SRPM
libssh2-1.4.3-11.el7_3.1.src.rpm SHA-256: 0e695878856b8931b039dce82ebb06c310b748a3794a6a8f23dc91d8c6bc83b9
x86_64
libssh2-1.4.3-11.el7_3.1.i686.rpm SHA-256: 56f1ca1735758fbd9be960e0dc7e24496c62934929b35aba3ad6c2eed2c960c1
libssh2-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 682d9146219977f3905a84aeb519fe0846d2ad52f0daf52d7abcf102bf593b7a
libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm SHA-256: fe29a0d787ae520e9001763400b0e5ed0348b009fe4baa5590e9ee07b70d4c4c
libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm SHA-256: fe29a0d787ae520e9001763400b0e5ed0348b009fe4baa5590e9ee07b70d4c4c
libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 9d6ac43bc285d9045d1b51bbc9443ac3925b8e26b2d4fdc408889868caff39be
libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 9d6ac43bc285d9045d1b51bbc9443ac3925b8e26b2d4fdc408889868caff39be
libssh2-devel-1.4.3-11.el7_3.1.i686.rpm SHA-256: d87ea4761e634e5ed39acf63eb9747a33ef593e50e4fd3e383066417d624f213
libssh2-devel-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 36aa2cc1b3ff122075af5b1164b48664e6822419300a13e5c34842db2c0af9f6
libssh2-docs-1.4.3-11.el7_3.1.noarch.rpm SHA-256: 272107105eb482a38bf0ccba77611e160f79102420a6394e9d276d1bf38d6d0b

Red Hat Enterprise Linux Server - TUS 7.3

SRPM
libssh2-1.4.3-11.el7_3.1.src.rpm SHA-256: 0e695878856b8931b039dce82ebb06c310b748a3794a6a8f23dc91d8c6bc83b9
x86_64
libssh2-1.4.3-11.el7_3.1.i686.rpm SHA-256: 56f1ca1735758fbd9be960e0dc7e24496c62934929b35aba3ad6c2eed2c960c1
libssh2-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 682d9146219977f3905a84aeb519fe0846d2ad52f0daf52d7abcf102bf593b7a
libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm SHA-256: fe29a0d787ae520e9001763400b0e5ed0348b009fe4baa5590e9ee07b70d4c4c
libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm SHA-256: fe29a0d787ae520e9001763400b0e5ed0348b009fe4baa5590e9ee07b70d4c4c
libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 9d6ac43bc285d9045d1b51bbc9443ac3925b8e26b2d4fdc408889868caff39be
libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 9d6ac43bc285d9045d1b51bbc9443ac3925b8e26b2d4fdc408889868caff39be
libssh2-devel-1.4.3-11.el7_3.1.i686.rpm SHA-256: d87ea4761e634e5ed39acf63eb9747a33ef593e50e4fd3e383066417d624f213
libssh2-devel-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 36aa2cc1b3ff122075af5b1164b48664e6822419300a13e5c34842db2c0af9f6
libssh2-docs-1.4.3-11.el7_3.1.noarch.rpm SHA-256: 272107105eb482a38bf0ccba77611e160f79102420a6394e9d276d1bf38d6d0b

Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.3

SRPM
libssh2-1.4.3-11.el7_3.1.src.rpm SHA-256: 0e695878856b8931b039dce82ebb06c310b748a3794a6a8f23dc91d8c6bc83b9
ppc64le
libssh2-1.4.3-11.el7_3.1.ppc64le.rpm SHA-256: daf5c9cbdabefcae8be9934e01c00d05b031f0857691012907fd46e47a4e63dc
libssh2-debuginfo-1.4.3-11.el7_3.1.ppc64le.rpm SHA-256: 82aa11f4e237614e7c67dd22d655d4c5dbd7b627c1bc356616659497b047b5c2
libssh2-debuginfo-1.4.3-11.el7_3.1.ppc64le.rpm SHA-256: 82aa11f4e237614e7c67dd22d655d4c5dbd7b627c1bc356616659497b047b5c2
libssh2-devel-1.4.3-11.el7_3.1.ppc64le.rpm SHA-256: 00daef44a3c9c4d4bc412f0f0869199553a07f41dcb6b182dc3fe2f0ef29a2e1
libssh2-docs-1.4.3-11.el7_3.1.noarch.rpm SHA-256: 272107105eb482a38bf0ccba77611e160f79102420a6394e9d276d1bf38d6d0b

Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.3

SRPM
libssh2-1.4.3-11.el7_3.1.src.rpm SHA-256: 0e695878856b8931b039dce82ebb06c310b748a3794a6a8f23dc91d8c6bc83b9
x86_64
libssh2-1.4.3-11.el7_3.1.i686.rpm SHA-256: 56f1ca1735758fbd9be960e0dc7e24496c62934929b35aba3ad6c2eed2c960c1
libssh2-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 682d9146219977f3905a84aeb519fe0846d2ad52f0daf52d7abcf102bf593b7a
libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm SHA-256: fe29a0d787ae520e9001763400b0e5ed0348b009fe4baa5590e9ee07b70d4c4c
libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm SHA-256: fe29a0d787ae520e9001763400b0e5ed0348b009fe4baa5590e9ee07b70d4c4c
libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 9d6ac43bc285d9045d1b51bbc9443ac3925b8e26b2d4fdc408889868caff39be
libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 9d6ac43bc285d9045d1b51bbc9443ac3925b8e26b2d4fdc408889868caff39be
libssh2-devel-1.4.3-11.el7_3.1.i686.rpm SHA-256: d87ea4761e634e5ed39acf63eb9747a33ef593e50e4fd3e383066417d624f213
libssh2-devel-1.4.3-11.el7_3.1.x86_64.rpm SHA-256: 36aa2cc1b3ff122075af5b1164b48664e6822419300a13e5c34842db2c0af9f6
libssh2-docs-1.4.3-11.el7_3.1.noarch.rpm SHA-256: 272107105eb482a38bf0ccba77611e160f79102420a6394e9d276d1bf38d6d0b

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