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CLEANSTART-2026-GK72927 Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification

🗓️ 17 Sep 2026 01:07:20Reported by GoogleType 
osv
 osv🔗 osv.dev👁 8 Views

openssl package PBMAC1 validation missing in PKCS#12 files causing buffer overflow or dereference.

Related
Refs
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CVE		CVE-2018-0734
30 Oct 201812:00
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CVE		CVE-2018-0735
29 Oct 201813:00
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CVE		CVE-2019-1543
6 Mar 201921:00
–cve
cve
CVE		CVE-2019-1547
10 Sep 201916:58
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CVE		CVE-2019-1549
10 Sep 201916:58
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CVE		CVE-2019-1551
6 Dec 201917:20
–cve
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CVE		CVE-2019-1563
10 Sep 201916:58
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CVE		CVE-2020-1967
21 Apr 202013:45
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CVE		CVE-2020-1971
8 Dec 202015:30
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CVE		CVE-2021-23839
16 Feb 202116:55
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17 Sep 2026 01:15Current
CVSS 3.19.8
EPSS0.92488
opensslPBMAC1PKCS#12buffer overflowMAC verification
8