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CVE-2007-5592—98.1%
——29——CVE-2019-3995—98.1%
——29——CVE-2003-0990—98.1%
——29——CVE-1999-0739—98.1%
——29——CVE-2013-5015—98.1%
——29——CVE-2018-12840—98.1%
——29——CVE-2009-1545—98.1%
——29——CVE-2012-1592—98.1%
——29——CVE-2025-54136—98.1%
——29——CVE-2019-14974—98.1%
——29——CVE-2007-5387—98.1%
——29——CVE-2024-24116—98.1%
——29——CVE-2008-4384—98.1%
——29——CVE-2012-0663—98.1%
——29——CVE-2022-27115—98.1%
——29——CVE-2026-1492—98.1%
——29——CVE-2010-0034—98.1%
——29——CVE-1999-0517—98.1%
——29——CVE-2023-32148—98.1%
——29——CVE-2018-7182—98.1%
——29——CVE-2014-0289—98.1%
——29——CVE-2024-5585—98.1%
——29——CVE-2018-8266—98.1%
——29——CVE-2016-0999—98.1%
——29——CVE-1999-0738—98.1%
——29——CVE-2007-1214—98.1%
——29——CVE-2009-0552—98.1%
——29——CVE-2008-4109—98.1%
——29——CVE-2018-19660—98.1%
——29——CVE-2007-4954—98.1%
——29——CVE-2024-11655—98.1%
——29——CVE-2017-0106—98.1%
——29——CVE-2020-35613—98.1%
——29——CVE-2015-2515—98.1%
——29——CVE-2022-44507.5 ALT98.1%
——29The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and
decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload data.
If the function succeeds then the "name_out", "header" and "data" arguments are
populated with pointers to buffers containing the relevant decoded data. The
caller is responsible for freeing those buffers. It is possible to construct a
PEM file that results in 0 bytes of payload data. In this case PEM_read_bio_ex()
will return a failure code but will populate the header argument with a pointer
to a buffer that has already been freed. If the caller also frees this buffer
then a double free will occur. This will most likely lead to a crash. This
could be exploited by an attacker who has the ability to supply malicious PEM
files for parsing to achieve a denial of service attack.
The functions PEM_read_bio() and PEM_read() are simple wrappers around
PEM_read_bio_ex() and therefore these functions are also directly affected.
These functions are also called indirectly by a number of other OpenSSL
functions including PEM_X509_INFO_read_bio_ex() and
SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL internal
uses of these functions are not vulnerable because the caller does not free the
header argument if PEM_read_bio_ex() returns a failure code. These locations
include the PEM_read_bio_TYPE() functions as well as the decoders introduced in
OpenSSL 3.0.
The OpenSSL asn1parse command line application is also impacted by this issue.16dCVE-2010-0817—98.1%
——29——CVE-2022-40843—98.1%
——29——CVE-2018-8587—98.1%
——29——CVE-2019-9848—98.1%
——29——CVE-2006-0058—98.1%
——29——