CVE-2023-2977

Summary

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.

Affected Software

Weaknesses

• CWE-119: CWE-119

ADP Enrichment

CVE Program Container

Additional 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/LAR54OV6EHA56B4XJF6RNPQ4HJ2ITU66/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FJD4Q4AJSGE5UIJI7OUYZY4HGGCVYQNI/
• https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

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/LAR54OV6EHA56B4XJF6RNPQ4HJ2ITU66/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FJD4Q4AJSGE5UIJI7OUYZY4HGGCVYQNI/

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