GHSA-6342-4x32-pp8v
Record from GitHub Advisory Database · Published February 9, 2023
A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| curl | Wolfi | 7.87.0-r0 |
| curl | Chainguard | 7.87.0-r0 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| wolfi | curl | 0 |
| chainguard | curl | 0 |
Timeline
- Feb 9, 2023 CVE Published
- May 1, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-6342-4x32-pp8v
vulnetix vdb fixes GHSA-6342-4x32-pp8v
Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/GHSA-6342-4x32-pp8v/fixes/registry"
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