GHSA-jq65-29v4-4x35

Suggest an improvement
Source
https://github.com/advisories/GHSA-jq65-29v4-4x35
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-jq65-29v4-4x35/GHSA-jq65-29v4-4x35.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-jq65-29v4-4x35
Aliases
Downstream
CGA (14)
JLSEC (1)
Published
2021-08-25T20:45:15Z
Modified
2026-07-17T21:08:30Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Null pointer deference in openssl-src
Details

Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).

Database specific 
{
    "cwe_ids":  [
        "CWE-476"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2021-08-19T21:21:21Z",
    "nvd_published_at":  "2020-04-21T14:15:00Z",
    "severity":  "HIGH"
}
References

Affected packages

crates.io / openssl-src

Package

Name
openssl-src
View open source insights on deps.dev
Purl
pkg:cargo/openssl-src

Affected ranges

Type
SEMVER
Events
Introduced
111.6.0
Fixed
111.9.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-jq65-29v4-4x35/GHSA-jq65-29v4-4x35.json"