CVE-2022-48570 — Out-of-bounds Write in Crypto

CWE-787 — Out-of-bounds Write5 documents5 sources
Severity
7.5HIGHNVD
OSV5.9
EPSS
0.5%
top 33.03%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cryptopp CryptoDebian Libcrypto
Timeline
PublishedAug 22
Latest updateAug 29

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDcryptopp/crypto8.4.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
OSV
CVE-2022-48570: Crypto++ through 8↗2023-08-22
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GHSA
GHSA-mgx5-qmrg-fjwp: Crypto++ through 8↗2023-08-22
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📋Vendor Advisories

1
Debian
CVE-2022-48570: libcrypto++ - Crypto++ through 8.4 contains a timing side channel in ECDSA signature generatio...↗2022
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💬Community

1
Bugzilla
CVE-2022-48570 cryptopp: timing side channel in ECDSA signature generation [epel-all]↗2023-08-29
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CVE-2022-48570 — Out-of-bounds Write in Cryptopp Crypto | cvebase