SB2022033026 - SUSE update for opensc
Published: March 30, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 13 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2019-15945)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when processing ASN.1 Bitstring within the decode_bit_string() function in libopensc/asn1.c. A local user can pass specially crafted data to the application, trigger out-of-bounds read error and read contents of memory on the system.
2) Out-of-bounds read (CVE-ID: CVE-2019-15946)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when processing ASN.1 Octet string within the asn1_decode_entry() function in libopensc/asn1.c. A local user can supply specially crafted data to the application, trigger out-of-bounds read error and read contents of memory on the system.
3) Out-of-bounds read (CVE-ID: CVE-2019-19479)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when parsing SETCOS file attribute in libopensc/card-setcos.c. A local user can pass specially crafted file to the application, trigger out-of-bounds read error and read contents of memory on the system.
4) Buffer overflow (CVE-ID: CVE-2019-19481)
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing CAC certificates in libopensc/card-cac1.c. A local user can pass specially crafted certificate to the application, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Double Free (CVE-ID: CVE-2019-20792)
The vulnerability allows a local non-authenticated attacker to execute arbitrary code.
OpenSC before 0.20.0 has a double free in coolkey_free_private_data because coolkey_add_object in libopensc/card-coolkey.c lacks a uniqueness check.
6) Memory leak (CVE-ID: CVE-2019-6502)
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due memory leak in sc_context_create in ctx.c in libopensc. A local user can trigger memory leak and perform denial of service attack.
7) Heap-based buffer overflow (CVE-ID: CVE-2020-26570)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the sc_oberthur_read_file. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
8) Stack-based buffer overflow (CVE-ID: CVE-2020-26571)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in sc_pkcs15emu_gemsafeGPK_init. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
9) Stack-based buffer overflow (CVE-ID: CVE-2020-26572)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in tcos_decipher. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
10) Use-after-free (CVE-ID: CVE-2021-42779)
The vulnerability allows an attacker with physical access to perform a denial of service attack.
The vulnerability exists due to a use-after-free error in Opensc in sc_file_valid. An attacker with physical access can trigger use-after-free to perform a denial of service attack.
11) Unchecked Return Value (CVE-ID: CVE-2021-42780)
The vulnerability allows an attacker with physical access to perform denial of service attacks.
The vulnerability exists due to use after return issue in insert_pin() function in Opensc. An attacker with physical access can trigger the vulnerability to perform denial of service attacks.
12) Heap-based buffer overflow (CVE-ID: CVE-2021-42781)
The vulnerability allows an attacker with physical access to perform denial of service attack.
The vulnerability exists due to a boundary error in Opensc before in pkcs15-oberthur.c. An attacker with physical access can pass specially crafted data to the application, trigger a heap-based buffer overflow and perform denial of service attack.
13) Stack-based buffer overflow (CVE-ID: CVE-2021-42782)
The vulnerability allows an attacker with physical access to perform a denial of service attack.
The vulnerability exists due to a boundary error in Opensc in various places. An attacker with physical access can trigger stack-based buffer overflow and perform a denial of service attack.
Remediation
Install update from vendor's website.