CVE-2020-26570

The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.

The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.

OpenSC provides a set of libraries and utilities to work with smart cards. Its main focus is on cards that support cryptographic operations, and facilitate their use in security applications such as authentication, mail encryption and digital signatures. OpenSC implements the standard APIs to smart cards, e.g. PKCS#11 API, Windows' Smart Card Minidriver and macOS Tokend.\r\n\r\n Security Fix(es):\r\n\r\n The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.(CVE-2020-26570)\r\n\r\n

The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.

Security Fix(es):

• opensc: heap-based buffer overflow in sc_oberthur_read_file (CVE-2020-26570)

• opensc: stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init (CVE-2020-26571)

• opensc: stack-based buffer overflow in tcos_decipher (CVE-2020-26572)

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.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.

The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.

The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.

Security Fix(es):

• opensc: heap-based buffer overflow in sc_oberthur_read_file (CVE-2020-26570)

• opensc: stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init (CVE-2020-26571)

• opensc: stack-based buffer overflow in tcos_decipher (CVE-2020-26572)

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.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file (CVE-2020-26570).

The gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init (CVE-2020-26571).

The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher (CVE-2020-26572).

This update for opensc fixes the following issues:

• CVE-2019-15945: Fixed an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string (bsc#1149746).
• CVE-2019-15946: Fixed an out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry (bsc#1149747)
• CVE-2019-19479: Fixed an incorrect read operation during parsing of a SETCOS file attribute (bsc#1158256)
• CVE-2019-19480: Fixed an improper free operation in sc_pkcs15_decode_prkdf_entry (bsc#1158307).
• CVE-2019-20792: Fixed a double free in coolkey_free_private_data (bsc#1170809).
• CVE-2020-26570: Fixed a buffer overflow in sc_oberthur_read_file (bsc#1177364).
• CVE-2020-26571: Fixed a stack-based buffer overflow in gemsafe GPK smart card software driver (bsc#1177380)
• CVE-2020-26572: Fixed a stack-based buffer overflow in tcos_decipher (bsc#1177378).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

These are all security issues fixed in the opensc-0.21.0-2.2 package on the GA media of openSUSE Tumbleweed.

This update for opensc fixes the following issues:

• CVE-2020-26571: gemsafe GPK smart card software driver stack-based buffer overflow (bsc#1177380)
• CVE-2019-15946: out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry (bsc#1149747)
• CVE-2019-15945: out-of-bounds access of an ASN.1 Bitstring in decode_bit_string (bsc#1149746)
• CVE-2019-19479: incorrect read operation during parsing of a SETCOS file attribute (bsc#1158256)
• CVE-2020-26572: Prevent out of bounds write (bsc#1177378)
• CVE-2020-26570: Fix buffer overflow in sc_oberthur_read_file (bsc#1177364)

This update for opensc fixes the following issues:

• CVE-2019-15945: Fixed an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string (bsc#1149746).
• CVE-2019-15946: Fixed an out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry (bsc#1149747)
• CVE-2019-19479: Fixed an incorrect read operation during parsing of a SETCOS file attribute (bsc#1158256)
• CVE-2019-19480: Fixed an improper free operation in sc_pkcs15_decode_prkdf_entry (bsc#1158307).
• CVE-2019-20792: Fixed a double free in coolkey_free_private_data (bsc#1170809).
• CVE-2020-26570: Fixed a buffer overflow in sc_oberthur_read_file (bsc#1177364).
• CVE-2020-26571: Fixed a stack-based buffer overflow in gemsafe GPK smart card software driver (bsc#1177380)
• CVE-2020-26572: Fixed a stack-based buffer overflow in tcos_decipher (bsc#1177378).

This update for opensc fixes the following issues:

Security issues fixed:

• CVE-2021-42780: Fixed use after return in insert_pin() (bsc#1192005).
• CVE-2021-42779: Fixed use after free in sc_file_valid() (bsc#1191992).
• CVE-2021-42781: Fixed multiple heap buffer overflows in pkcs15-oberthur.c (bsc#1192000).
• CVE-2021-42782: Stack buffer overflow issues in various places (bsc#1191957).
• CVE-2019-6502: Fixed a memory leak in sc_context_create() (bsc#1122756).
• CVE-2020-26570: Fixed a heap based buffer overflow in sc_oberthur_read_file (bsc#1177364).
• CVE-2020-26572: Prevent out of bounds write (bsc#1177378)
• CVE-2020-26571: gemsafe GPK smart card software driver stack-based buffer overflow (bsc#1177380)
• CVE-2019-15946: out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry (bsc#1149747)
• CVE-2019-19479: incorrect read operation during parsing of a SETCOS file attribute (bsc#1158256)
• CVE-2019-15945: Fixed an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string (bsc#1149746).
• CVE-2019-19481: Fixed an improper handling of buffer limits for CAC certificates (bsc#1158305).
• CVE-2019-20792: Fixed a double free in coolkey_free_private_data (bsc#1170809).

Non-security issues fixed:

• Fixes segmentation fault in 'pkcs11-tool.c'. (bsc#1114649)

It was discovered that some OpenSC smart card drivers mishandled memory when performing certain decoding operations. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2019-15945, CVE-2019-15946)

It was discovered that some OpenSC smart card drivers had buffer overflow vulnerabilities. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. (CVE-2020-26570, CVE-2020-26571, CVE-2020-26572)