CVE catalog

CVE-2022-42915

curl: CVE-2022-42915

Severity: High · CVSS 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Oct 25, 2022, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 2.93% · Oct 25, 2026

curl before 7.86.0 has a double free. If curl is told to use an HTTP proxy for a transfer with a non-HTTP(S) URL, it sets up the connection to the remote server by issuing a CONNECT request to the proxy, and then tunnels the rest of the protocol through. An HTTP proxy might refuse this request (HTTP proxies often only allow outgoing connections to specific port numbers, like 443 for HTTPS) and instead return a non-200 status code to the client. Due to flaws in the error/cleanup handling, this could trigger a double free in curl if one of the following schemes were used in the URL for the transfer: dict, gopher, gophers, ldap, ldaps, rtmp, rtmps, or telnet. The earliest affected version is 7.77.0.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	curl	sid	`8.23.0-1`	fixed
Debian	curl	forky	`8.22.0-1`	fixed
Debian	curl	trixie	`8.14.1-2+deb13u5`	fixed
Debian	curl	trixie-security	`8.14.1-2+deb13u7`	fixed
Debian	curl	bookworm	`7.88.1-10+deb12u15`	fixed
Debian	curl	bookworm-security	`7.88.1-10+deb12u5`	fixed
Cpe	curl	Not reported	`7.86.0`	fixed
Cpe	fedora	Not reported	Not reported	unknown
Cpe	h300s_firmware	Not reported	Not reported	unknown
Cpe	h500s_firmware	Not reported	Not reported	unknown
Cpe	h700s_firmware	Not reported	Not reported	unknown
Cpe	h410s_firmware	Not reported	Not reported	unknown
Cpe	ontap_9	Not reported	Not reported	unknown
Cpe	macos	Not reported	`13.2`	fixed
Cpe	universal_forwarder	Not reported	Not reported	unknown
Ubuntu	curl	22.04	`7.74.0-1.3ubuntu2`	vulnerable
Ubuntu	curl	22.04	`7.74.0-1.3ubuntu3`	vulnerable
Ubuntu	curl	22.04	`7.80.0-3`	vulnerable
Ubuntu	curl	22.04	`7.81.0-1`	vulnerable
Ubuntu	curl	22.04	`7.81.0-1ubuntu1.1`	vulnerable
Ubuntu	curl	22.04	`7.81.0-1ubuntu1.2`	vulnerable
Ubuntu	curl	22.04	`7.81.0-1ubuntu1.3`	vulnerable
Ubuntu	curl	22.04	`7.81.0-1ubuntu1.4`	vulnerable
Ubuntu	curl	22.04	`7.81.0-1ubuntu1.6`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	curl	source	sid	`7.86.0-1`	not yet assigned	Not reported	Not reported
Debian	curl	source	forky	`7.86.0-1`	not yet assigned	Not reported	Not reported
Debian	curl	source	trixie	`7.86.0-1`	not yet assigned	Not reported	Not reported
Debian	curl	source	bookworm	`7.86.0-1`	not yet assigned	Not reported	Not reported
Cpe	curl	cpe	Not reported	`7.86.0`	Not reported	NVD-CVE-2022-42915	Not reported
Cpe	macos	cpe	Not reported	`13.2`	Not reported	NVD-CVE-2022-42915	Not reported
Ubuntu	curl	deb	22.04	`7.81.0-1ubuntu1.6`	Not reported	UBUNTU-CVE-2022-42915	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[curl]Unknown
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
[libcurl3-gnutls]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
[libcurl3-nss]Unknown
Source package: [curl]
Details (4)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
[libcurl4]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
[libcurl4-doc]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · all · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · all · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · all · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · all · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · all · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · all · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
[libcurl4-gnutls-dev]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
[libcurl4-nss-dev]Unknown
Source package: [curl]
Details (4)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
[libcurl4-openssl-dev]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Fixed · Fixed: 7.86.0-1
  dsa · curl · debian · bookworm

Observed: Oct 23, 2026, 6:30:15 PM UTC

References

[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]