Veracode Vulnerability DatabaseVERACODE:40838Heap-based Buffer Overflow
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%
libopensc.so is vulnerable to Heap-based Buffer Overflow. The vulnerability exists due to the cardos_have_verifyrc_package function in pkcs15-cardos.c because it scans the ASN1 buffer for 2 tags, but the remaining length can be wrongly calculated due to a moved starting pointer, allowing an attacker to cause heap-based buffer overflows.
| CPE | Name | Operator | Version |
|---|---|---|---|
| libopensc.so | le | 8.1.0 | |
| opensc:sid | eq | 0.22.0-1 | |
| opensc:sid | eq | 0.20.0-4 | |
| libopensc.so | le | 8.1.0 | |
| opensc:sid | eq | 0.22.0-1 | |
| opensc:sid | eq | 0.20.0-4 |
References
access.redhat.com/security/cve/CVE-2023-2977
bugzilla.redhat.com/show_bug.cgi?id=2211088
github.com/OpenSC/OpenSC/commit/81944d1529202bd28359bede57c0a15deb65ba8a
github.com/OpenSC/OpenSC/issues/2785
github.com/OpenSC/OpenSC/pull/2787
lists.debian.org/debian-lts-announce/2023/06/msg00025.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FJD4Q4AJSGE5UIJI7OUYZY4HGGCVYQNI/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LAR54OV6EHA56B4XJF6RNPQ4HJ2ITU66/
lists.fedoraproject.org/archives/list/[email protected]/message/FJD4Q4AJSGE5UIJI7OUYZY4HGGCVYQNI/
lists.fedoraproject.org/archives/list/[email protected]/message/LAR54OV6EHA56B4XJF6RNPQ4HJ2ITU66/
Related
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%