VULNERABILITY

Alma Linux: CVE-2023-2977: Low: opensc security and bug fix update (Multiple Advisories)

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Alma Linux: CVE-2023-2977: Low: opensc security and bug fix update (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
06/01/2023
Created
11/17/2023
Added
11/16/2023
Modified
01/28/2025

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.

Solution(s)

  • alma-upgrade-opensc

References

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