Description
A NULL pointer dereference exists in curl 7.21.0 to and including curl 7.58.0 in the LDAP code that allows an attacker to cause a denial of service
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | curl | 7.60.0-1 | — |
| Debian 13 | curl | 7.60.0-1 | — |
| Debian 12 | curl | 7.60.0-1 | — |
| Debian 9 | curl | 7.52.1-5+deb9u5 | DSA-4136-1 |
| Debian 8 | curl | 7.38.0-4+deb8u10 | DSA-4136-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | curl | 7.26.0-1+wheezy25 | DLA-1309-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | curl | 7.58.0-2ubuntu3 | — |
| Ubuntu 16.04 LTS | curl | 7.47.0-1ubuntu2.7 | USN-3598-1 |
| Ubuntu 14.04 LTS | curl | 7.35.0-1ubuntu2.15 | USN-3598-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | curl +2 | 7.29.0-51.el7 | RHSA-2018:3157 |
| RHEL 7 | nss-pem | 1.0.3-5.el7 | RHSA-2018:3157 |
| RHEL 3 | httpd24-curl +2 | 7.61.1-1.el6 | RHSA-2018:3558 |
| RHEL 3 | httpd24-httpd +5 | 2.4.34-7.el6 | RHSA-2018:3558 |
| RHEL 3 | httpd24-mod_md | 2.4.34-7.el7 | RHSA-2018:3558 |
| RHEL 3 | httpd24-mod_ssl +1 | 1:2.4.34-7.el6 | RHSA-2018:3558 |
| RHEL 3 | httpd24-nghttp2 +2 | 1.7.1-7.el6 | RHSA-2018:3558 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7.5 EUS | curl +2 | 7.29.0-46.el7_5.1 | RHSA-2020:0544 |
| RHEL 7.4 TUS | curl +2 | 7.29.0-42.el7_4.2 | RHSA-2020:0594 |
| RHEL 7.4 E4S | curl +2 | 7.29.0-42.el7_4.2 | RHSA-2020:0594 |
| RHEL 7.4 AUS | curl +2 | 7.29.0-42.el7_4.2 | RHSA-2020:0594 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | curl | 7.37.0-37.17.1 | SUSE-SU-2018:0769-1 |
| SLES 12 SP2 | curl | 7.37.0-37.17.1 | SUSE-SU-2018:0769-1 |
| SLES 11 SP4 | curl | 7.37.0-70.27.1 | SUSE-SU-2018:1323-1 |
| SLES 11 SP3 | curl +1 | 7.37.0-70.27.1 | SUSE-SU-2018:1323-1 |
| SLES 11 | curl-openssl1 | 7.37.0-70.27.1 | SUSE-SU-2018:1323-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | curl | 7.37.0-37.17.1 | SUSE-SU-2018:0769-1 |
| SLES for SAP 12 SP2 | curl | 7.37.0-37.17.1 | SUSE-SU-2018:0769-1 |
| SLES for SAP 11 SP4 | curl | 7.37.0-70.27.1 | SUSE-SU-2018:1323-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | curl | 7.37.0-70.27.1 | SUSE-SU-2018:1323-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | curl | 7.59.0-r0 | — |
| Alpine v3.23 | curl | 7.59.0-r0 | — |
| Alpine v3.22 | curl | 7.59.0-r0 | — |
| Alpine v3.21 | curl | 7.59.0-r0 | — |
| Alpine v3.20 | curl | 7.59.0-r0 | — |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | curl | 7.59.0-r0 | — |
| Alpine v3.18 | curl | 7.59.0-r0 | — |
| Alpine v3.17 | curl | 7.59.0-r0 | — |
| Alpine v3.16 | curl | 7.59.0-r0 | — |
| Alpine v3.15 | curl | 7.59.0-r0 | — |
| Alpine v3.14 | curl | 7.59.0-r0 | — |
| Alpine v3.13 | curl | 7.59.0-r0 | — |
| Alpine v3.12 | curl | 7.59.0-r0 | — |
| Alpine v3.11 | curl | 7.59.0-r0 | — |
| Alpine v3.10 | curl | 7.59.0-r0 | — |
| Alpine v3.9 | curl | 7.59.0-r0 | — |
| Alpine v3.8 | curl | 7.59.0-r0 | — |
| Alpine v3.7 | curl | 7.59.0-r0 | — |
| Alpine v3.6 | curl | 7.59.0-r0 | — |
| Alpine v3.5 | curl | 7.59.0-r0 | — |
| Alpine v3.4 | curl | 7.59.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | curl +2 | 7.55.1-10.amzn2.0.1 | ALAS2-2018-995 |
| Amazon Linux 2 | nss-pem | 1.0.3-5.amzn2 | ALAS2-2019-1139 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | curl +2 | 7.29.0-51.el7 | ELSA-2018-3157 |
| Oracle Linux 7 | nss-pem | 1.0.3-5.el7 | ELSA-2018-3157 |
Advisories 16
- RHSA-2020:0594 Red Hat Security Advisory: curl security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2020:0544 Red Hat Security Advisory: curl security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2018:3558 Red Hat Security Advisory: httpd24 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2018:3157 Red Hat Security Advisory: curl and nss-pem security and bug fix update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- USN-3598-1 curl vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4136-1 curl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1309-1 curl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2018:0769-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2026-0180 Dell Data Protection Advisor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- VDE-2019-009 PHOENIX CONTACT: Multiple Vulnerabilities in AXC F 2152 CERT@VDE · May 22, 2025
- SUSE-SU-2018:1323-1 Security update for curl SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-1644 cURL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 10, 2024
- ICSA-19-155-01 PHOENIX CONTACT PLCNext AXC F 2152 CISA ICS & IT advisories · Jun 4, 2019
- ALAS2-2019-1139 Moderate: nss-pem security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 9, 2019
- ELSA-2018-3157 Moderate: curl and nss-pem security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 5, 2018
- ALAS2-2018-995 Moderate: curl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 19, 2018
References
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- RHSA-2018:3558 vendor-advisory
- RHSA-2018:3157 vendor-advisory
- DSA-4136 vendor-advisory
- 103415 vdb-entry
- 1040529 vdb-entry
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://curl.haxx.se/docs/adv_2018-97a2.html
- [debian-lts-announce] 20180318 [SECURITY] [DLA 1309-1] curl security update mailing-list
- USN-3598-1 vendor-advisory
- USN-3598-2 vendor-advisory
- RHBA-2019:0327 vendor-advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- RHSA-2020:0544 vendor-advisory
- RHSA-2020:0594 vendor-advisory