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Package details: pkg:deb/debian/libssh2@1.2.6-1
purl pkg:deb/debian/libssh2@1.2.6-1
Next non-vulnerable version 1.9.0-2+deb11u1
Latest non-vulnerable version 1.9.0-2+deb11u1
Risk 4.5
Vulnerabilities affecting this package (14)
Vulnerability Summary Fixed by
VCID-97nz-s1q6-x3fc
Aliases:
CVE-2019-3861
Out-of-bounds Read An out-of-bounds read flaw was discovered in libssh2 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-bcba-qntz-gkez
Aliases:
CVE-2019-3863
Out-of-bounds Write A flaw was found in libssh2 A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out-of-bounds memory write error.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-chdt-29cx-dyas
Aliases:
CVE-2015-1782
Improper Input Validation The kex_agree_methods function in libssh2 allows remote servers to cause a denial of service (crash) or have other unspecified impact via crafted length values in an SSH_MSG_KEXINIT packet.
1.4.2-1.1+deb7u2
Affected by 14 other vulnerabilities.
1.4.3-4.1
Affected by 13 other vulnerabilities.
VCID-cmy6-8sjv-n3h1
Aliases:
CVE-2016-0787
Exposure of Sensitive Information to an Unauthorized Actor The diffie_hellman_sha256 function in kex.c in libssh2 improperly truncates secrets to bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."
1.4.2-1.1+deb7u2
Affected by 14 other vulnerabilities.
1.4.3-4.1+deb8u1
Affected by 13 other vulnerabilities.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
VCID-f1me-9vqd-j7f6
Aliases:
CVE-2019-3855
Out-of-bounds Write An integer overflow flaw which could lead to an out-of-bounds write was discovered in libssh2 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-grd5-zwxv-cqfw
Aliases:
CVE-2019-17498
libssh2: integer overflow in SSH_MSG_DISCONNECT logic in packet.c
1.9.0-2+deb11u1
Affected by 0 other vulnerabilities.
VCID-gv2u-298u-jkcv
Aliases:
CVE-2019-3859
Out-of-bounds Read An out-of-bounds read flaw was discovered in libssh2 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-jp7j-dwbq-zkgk
Aliases:
CVE-2019-13115
libssh2: integer overflow in kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c leads to out-of-bounds write
1.9.0-2+deb11u1
Affected by 0 other vulnerabilities.
VCID-k1js-k8q3-ekb2
Aliases:
CVE-2019-3860
Out-of-bounds Read An out-of-bounds read flaw was discovered in libssh2 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-mevw-g6yq-eqa8
Aliases:
CVE-2019-3857
Out-of-bounds Write An integer overflow flaw which could lead to an out-of-bounds write was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-qjzc-2hvn-2qg3
Aliases:
CVE-2019-3856
Out-of-bounds Write An integer overflow flaw, which could lead to an out-of-bounds write, was discovered in libssh2 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-rv81-jwkz-w7b5
Aliases:
CVE-2019-3858
Out-of-bounds Read An out-of-bounds read flaw was discovered in libssh2 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-sy5b-nfqk-6ucm
Aliases:
CVE-2019-3862
Out-of-bounds Read An out-of-bounds read flaw was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
1.7.0-1+deb9u1
Affected by 12 other vulnerabilities.
1.8.0-2.1
Affected by 3 other vulnerabilities.
VCID-wka6-6yn3-ubb1
Aliases:
CVE-2020-22218
libssh2: use-of-uninitialized-value in _libssh2_transport_read
1.9.0-2+deb11u1
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-04-16T01:10:42.079937+00:00 Debian Oval Importer Affected by VCID-f1me-9vqd-j7f6 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-16T00:02:06.504447+00:00 Debian Oval Importer Affected by VCID-wka6-6yn3-ubb1 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T21:30:52.439528+00:00 Debian Oval Importer Affected by VCID-grd5-zwxv-cqfw https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T21:22:40.989792+00:00 Debian Oval Importer Affected by VCID-k1js-k8q3-ekb2 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T20:56:50.944968+00:00 Debian Oval Importer Affected by VCID-bcba-qntz-gkez https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T19:44:47.955017+00:00 Debian Oval Importer Affected by VCID-chdt-29cx-dyas https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T19:39:08.729404+00:00 Debian Oval Importer Affected by VCID-gv2u-298u-jkcv https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T18:38:34.951999+00:00 Debian Oval Importer Affected by VCID-sy5b-nfqk-6ucm https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T16:52:25.376629+00:00 Debian Oval Importer Affected by VCID-jp7j-dwbq-zkgk https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T16:17:16.991764+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T16:11:27.095328+00:00 Debian Oval Importer Affected by VCID-qjzc-2hvn-2qg3 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T16:03:07.078640+00:00 Debian Oval Importer Affected by VCID-97nz-s1q6-x3fc https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T15:41:02.715941+00:00 Debian Oval Importer Affected by VCID-mevw-g6yq-eqa8 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T15:20:50.611210+00:00 Debian Oval Importer Affected by VCID-rv81-jwkz-w7b5 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.4.0
2026-04-15T14:40:03.285798+00:00 Debian Oval Importer Affected by VCID-97nz-s1q6-x3fc https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T14:34:10.051248+00:00 Debian Oval Importer Affected by VCID-rv81-jwkz-w7b5 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T14:30:03.045032+00:00 Debian Oval Importer Affected by VCID-sy5b-nfqk-6ucm https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T14:26:53.137993+00:00 Debian Oval Importer Affected by VCID-mevw-g6yq-eqa8 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T14:20:21.690657+00:00 Debian Oval Importer Affected by VCID-qjzc-2hvn-2qg3 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T14:17:35.508206+00:00 Debian Oval Importer Affected by VCID-bcba-qntz-gkez https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T14:17:29.068452+00:00 Debian Oval Importer Affected by VCID-k1js-k8q3-ekb2 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T14:16:03.003360+00:00 Debian Oval Importer Affected by VCID-gv2u-298u-jkcv https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T14:08:57.992699+00:00 Debian Oval Importer Affected by VCID-f1me-9vqd-j7f6 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.4.0
2026-04-15T13:39:53.790513+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-jessie.xml.bz2 38.4.0
2026-04-15T13:19:14.672976+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-wheezy.xml.bz2 38.4.0
2026-04-15T13:11:15.851160+00:00 Debian Oval Importer Affected by VCID-chdt-29cx-dyas https://www.debian.org/security/oval/oval-definitions-wheezy.xml.bz2 38.4.0
2026-04-12T00:42:34.051512+00:00 Debian Oval Importer Affected by VCID-f1me-9vqd-j7f6 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T23:36:13.544909+00:00 Debian Oval Importer Affected by VCID-wka6-6yn3-ubb1 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T21:09:56.543176+00:00 Debian Oval Importer Affected by VCID-grd5-zwxv-cqfw https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T21:02:10.842379+00:00 Debian Oval Importer Affected by VCID-k1js-k8q3-ekb2 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T20:37:13.108205+00:00 Debian Oval Importer Affected by VCID-bcba-qntz-gkez https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T19:27:14.063192+00:00 Debian Oval Importer Affected by VCID-chdt-29cx-dyas https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T19:21:46.387512+00:00 Debian Oval Importer Affected by VCID-gv2u-298u-jkcv https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T18:23:07.732836+00:00 Debian Oval Importer Affected by VCID-sy5b-nfqk-6ucm https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T16:39:09.614384+00:00 Debian Oval Importer Affected by VCID-jp7j-dwbq-zkgk https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T16:04:37.457733+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T15:58:53.774883+00:00 Debian Oval Importer Affected by VCID-qjzc-2hvn-2qg3 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T15:50:40.997802+00:00 Debian Oval Importer Affected by VCID-97nz-s1q6-x3fc https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T15:28:52.153246+00:00 Debian Oval Importer Affected by VCID-mevw-g6yq-eqa8 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T15:09:06.946597+00:00 Debian Oval Importer Affected by VCID-rv81-jwkz-w7b5 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.3.0
2026-04-11T14:28:20.664201+00:00 Debian Oval Importer Affected by VCID-97nz-s1q6-x3fc https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T14:22:27.483008+00:00 Debian Oval Importer Affected by VCID-rv81-jwkz-w7b5 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T14:18:21.665856+00:00 Debian Oval Importer Affected by VCID-sy5b-nfqk-6ucm https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T14:15:13.166522+00:00 Debian Oval Importer Affected by VCID-mevw-g6yq-eqa8 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T14:08:46.693324+00:00 Debian Oval Importer Affected by VCID-qjzc-2hvn-2qg3 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T14:06:06.508670+00:00 Debian Oval Importer Affected by VCID-bcba-qntz-gkez https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T14:05:59.833069+00:00 Debian Oval Importer Affected by VCID-k1js-k8q3-ekb2 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T14:04:34.524335+00:00 Debian Oval Importer Affected by VCID-gv2u-298u-jkcv https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T13:57:31.919338+00:00 Debian Oval Importer Affected by VCID-f1me-9vqd-j7f6 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.3.0
2026-04-11T13:28:36.633463+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-jessie.xml.bz2 38.3.0
2026-04-11T13:07:59.146227+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-wheezy.xml.bz2 38.3.0
2026-04-11T12:59:59.593686+00:00 Debian Oval Importer Affected by VCID-chdt-29cx-dyas https://www.debian.org/security/oval/oval-definitions-wheezy.xml.bz2 38.3.0
2026-04-09T00:12:22.004201+00:00 Debian Oval Importer Affected by VCID-f1me-9vqd-j7f6 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T23:08:51.841411+00:00 Debian Oval Importer Affected by VCID-wka6-6yn3-ubb1 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T20:48:56.819757+00:00 Debian Oval Importer Affected by VCID-grd5-zwxv-cqfw https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T20:41:27.215998+00:00 Debian Oval Importer Affected by VCID-k1js-k8q3-ekb2 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T20:17:18.367586+00:00 Debian Oval Importer Affected by VCID-bcba-qntz-gkez https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T19:10:46.363411+00:00 Debian Oval Importer Affected by VCID-chdt-29cx-dyas https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T19:05:29.734255+00:00 Debian Oval Importer Affected by VCID-gv2u-298u-jkcv https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T18:09:06.085319+00:00 Debian Oval Importer Affected by VCID-sy5b-nfqk-6ucm https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T16:29:47.224419+00:00 Debian Oval Importer Affected by VCID-jp7j-dwbq-zkgk https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T15:57:25.149792+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T15:51:59.927423+00:00 Debian Oval Importer Affected by VCID-qjzc-2hvn-2qg3 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T15:44:06.430517+00:00 Debian Oval Importer Affected by VCID-97nz-s1q6-x3fc https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T15:23:12.483739+00:00 Debian Oval Importer Affected by VCID-mevw-g6yq-eqa8 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T15:04:14.320013+00:00 Debian Oval Importer Affected by VCID-rv81-jwkz-w7b5 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0
2026-04-08T13:07:14.849186+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-wheezy.xml.bz2 38.1.0
2026-04-07T23:01:44.555733+00:00 Debian Oval Importer Affected by VCID-97nz-s1q6-x3fc https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:56:02.013734+00:00 Debian Oval Importer Affected by VCID-rv81-jwkz-w7b5 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:52:05.301849+00:00 Debian Oval Importer Affected by VCID-sy5b-nfqk-6ucm https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:49:01.653536+00:00 Debian Oval Importer Affected by VCID-mevw-g6yq-eqa8 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:42:48.009405+00:00 Debian Oval Importer Affected by VCID-qjzc-2hvn-2qg3 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:40:10.506015+00:00 Debian Oval Importer Affected by VCID-bcba-qntz-gkez https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:40:00.554963+00:00 Debian Oval Importer Affected by VCID-k1js-k8q3-ekb2 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:38:43.368804+00:00 Debian Oval Importer Affected by VCID-gv2u-298u-jkcv https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:32:14.552341+00:00 Debian Oval Importer Affected by VCID-f1me-9vqd-j7f6 https://www.debian.org/security/oval/oval-definitions-stretch.xml.bz2 38.1.0
2026-04-07T22:04:21.198349+00:00 Debian Oval Importer Affected by VCID-cmy6-8sjv-n3h1 https://www.debian.org/security/oval/oval-definitions-jessie.xml.bz2 38.1.0
2026-04-07T21:34:54.727059+00:00 Debian Oval Importer Affected by VCID-chdt-29cx-dyas https://www.debian.org/security/oval/oval-definitions-wheezy.xml.bz2 38.1.0