CVE-2023-2977
Published: October 18, 2023Last modified: April 15, 2024
Description
A vulnerbility was found in OpenSC. This security flaw cause a buffer overrun vulnerability in pkcs15 cardos_have_verifyrc_package. The attacker can supply a smart card package with malformed ASN1 context. The cardos_have_verifyrc_package function scans the ASN1 buffer for 2 tags, where remaining length is wrongly caculated due to moved starting pointer. This leads to possible heap-based buffer oob read. In cases where ASAN is enabled while compiling this causes a crash. Further info leak or more damage is possible.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | opensc | Fixed (0.22.0-r5) |
| Stream | opensc | Fixed (0.24.0-r0) |
References
- https://access.redhat.com/security/cve/CVE-2023-2977
- https://bugzilla.redhat.com/show_bug.cgi?id=2211088
- https://github.com/OpenSC/OpenSC/issues/2785
- https://github.com/OpenSC/OpenSC/pull/2787
- https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FJD4Q4AJSGE5UIJI7OUYZY4HGGCVYQNI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LAR54OV6EHA56B4XJF6RNPQ4HJ2ITU66/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/FJD4Q4AJSGE5UIJI7OUYZY4HGGCVYQNI/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LAR54OV6EHA56B4XJF6RNPQ4HJ2ITU66/