High
libcrypto++ — security advisory
Crypto++ through 8.4 contains a timing side channel in ECDSA signature generation. Function FixedSizeAllocatorWithCleanup could write to memory outside of the allocation if the allocated memory was not 16-byte aligned. NOTE: this issue exists because the CVE-2019-14318 fix was intentionally removed for functionality reasons.
- Products
- libcrypto++
- Affected versions
- 5.6.1-6, 5.6.1-6+deb8u1build0.14.04.1, 5.6.1-6+deb8u3build0.14.04.1, 5.6.1-6+deb8u3ubuntu0.1~esm1, 5.6.1-8, 5.6.1-9, 5.6.1-9ubuntu0.1, 5.6.1-9ubuntu0.1+esm1, 5.6.4-8, 5.6.4-9, 5.6.4-9build1, 8.4.0-1, 8.6.0-2ubuntu1, 8.8.0-1, 8.9.0-1, 8.9.0-1.1, 8.9.0-1.1build1, 8.9.0-2, 8.9.0-2build1, 8.9.0-3
- Fixed versions
- Not specified
- CVEs
- CVE-2022-48570
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:02 UTC · Revision 1
Source evidence
Crypto++ through 8.4 contains a timing side channel in ECDSA signature generation. Function FixedSizeAllocatorWithCleanup could write to memory outside of the allocation if the allocated memory was not 16-byte aligned. NOTE: this issue exists because the CVE-2019-14318 fix was intentionally removed for functionality reasons.
osv:UBUNTU-CVE-2022-48570
libcrypto++
Fixed versions: Not specified
libcrypto++
Fixed versions: Not specified
libcrypto++
Fixed versions: Not specified
libcrypto++
Fixed versions: Not specified
libcrypto++
Fixed versions: Not specified
libcrypto++
Fixed versions: Not specified
libcrypto++
Fixed versions: Not specified
libcrypto++
Fixed versions: Not specified
libcrypto++
Fixed versions: Not specified
Complete source record
{
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"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2022-48570",
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"summary": "Crypto++ through 8.4 contains a timing side channel in ECDSA signature generation. Function FixedSizeAllocatorWithCleanup could write to memory outside of the allocation if the allocated memory was not 16-byte aligned. NOTE: this issue exists because the CVE-2019-14318 fix was intentionally removed for functionality reasons.",
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],
"modified": "2026-10-17T12:56:22.928095907Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2022-48570",
"https://github.com/weidai11/cryptopp/issues/992",
"https://github.com/weidai11/cryptopp/releases/tag/CRYPTOPP_8_4_0",
"https://www.cve.org/CVERecord?id=CVE-2022-48570"
]
},
"related_cves": [
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"value": "CVE-2022-48570",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355516,
"published_at": "2023-08-22T19:16:00+00:00"
}