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CVE-2016-4353

libksba: denial of service due to stack overflow in src/ber-decoder.c (push_decoder_state, pop_decoder_state)

ber-decoder.c in Libksba before 1.3.3 does not properly handle decoder stack overflows, which allows remote attackers to cause a denial of service (abort) via crafted BER data.

CVSS 3.0 · 7.5 High EPSS 2.1% KEV · Not listed
Vendors
Canonical Gnupg
Products
Ubuntu Linux Libksba
CVE-2016-4354

libksba: integer overflow in the BER decoder src/ber-decoder.c (ber_decoder_s)

ber-decoder.c in Libksba before 1.3.3 uses an incorrect integer data type, which allows remote attackers to cause a denial of service (crash) via crafted BER data, which leads to a buffer overflow.

CVSS 3.0 · 7.5 High EPSS 1.9% KEV · Not listed
Vendors
Canonical Gnupg
Products
Ubuntu Linux Libksba
CVE-2016-4355

libksba: integer overflow in the BER decoder src/ber-decoder.c (ber_decoder_s)

Multiple integer overflows in ber-decoder.c in Libksba before 1.3.3 allow remote attackers to cause a denial of service (crash) via crafted BER data, which leads to a buffer overflow.

CVSS 3.0 · 7.5 High EPSS 2.1% KEV · Not listed
Vendors
Canonical Gnupg
Products
Ubuntu Linux Libksba
CVE-2014-9087

libksba: integer underflow flaw leading to a heap-based buffer overflow in ksba_oid_to_str()

Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in GnuPG, allows remote attackers to cause a denial of service (crash) via a crafted OID in a (1) S/MIME message or (2) ECC based OpenPGP data, which triggers a buffer overflow.

CVSS 2.0 · 7.5 High EPSS 5.7% KEV · Not listed
Vendors
Canonical Debian Gnupg and 1 more
Products
Ubuntu Linux Debian Linux Gnupg and 2 more
CVE-2016-4574

libksba: Incomplete fix for CVE-2016-4356

Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.

CVSS 3.0 · 7.5 High EPSS 2.8% KEV · Not listed
Vendors
Canonical Gnupg Opensuse
Products
Ubuntu Linux Libksba Leap and 1 more
CVE-2016-4579

libksba: Out-of-bounds read in _ksba_ber_parse_tl

Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."

CVSS 3.0 · 7.5 High EPSS 3.3% KEV · Not listed
Vendors
Canonical Gnupg Opensuse
Products
Ubuntu Linux Libksba Leap
CVE-2016-4356

libksba: encoding of invalid utf-8 strings in DN decoder src/dn.c (append_quoted, append_atv)

The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.

CVSS 3.0 · 7.5 High EPSS 3.3% KEV · Not listed
Vendors
Canonical Gnupg
Products
Ubuntu Linux Libksba
CVE-2022-3515

libksba: integer overflow may lead to remote code execution

A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment.

CVSS 3.1 · 9.8 Critical EPSS 1.8% KEV · Not listed
Vendors
Gnupg Gpg4win Redhat
Products
Gnupg Libksba Vs-desktop and 7 more