# CVE-2023-27538: curl: The curl packages provide the libcurl library and the curl utility for downloading files from servers using various p... CVE-2023-27538 is fixed in 13 products on 1 platform, first by curl 7.58.0-2ubuntu3.24, released March 19, 2023. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2023-27538 - Priority: Routine - CVSS: 5.9 (Moderate) - EPSS: 0.0145 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Mar 19, 2023 ## Description The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fix(es): * curl: GSS delegation too eager connection re-use (CVE-2023-27536) * curl: TELNET option IAC injection (CVE-2023-27533) * curl: SFTP path ~ resolving discrepancy (CVE-2023-27534) * curl: SSH connection too eager reuse still (CVE-2023-27538) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.3 Release Notes linked from the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | curl Debian 12.15 (bookworm) | 7.88.1-7 | [DEBIAN-CVE-2023-27538](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27538.md) | Mar 30, 2023 | | Linux | curl Debian 13.5 (trixie) | 7.88.1-7 | [DEBIAN-CVE-2023-27538](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27538.md) | Mar 30, 2023 | | Linux | curl Debian 14 | 7.88.1-7 | [DEBIAN-CVE-2023-27538](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27538.md) | Mar 30, 2023 | | Linux | curl RHEL 9 | 0:7.76.1-26.el9 | [RHSA-2023:6679](https://patchblox.com/security/data/fix/linux/rhsa-2023-6679.md) | Nov 7, 2023 | | Linux | curl Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.24 | [curl 7.58.0-2ubuntu3.24](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-curl-7.58.0-2ubuntu3.24.md) | Mar 19, 2023 | | Linux | curl Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.18 | [curl 7.68.0-1ubuntu2.18](https://patchblox.com/security/data/fix/linux/ubuntu-focal-curl-7.68.0-1ubuntu2.18.md) | Mar 19, 2023 | | Linux | curl Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.10 | [curl 7.81.0-1ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-curl-7.81.0-1ubuntu1.10.md) | Mar 19, 2023 | | Linux | curl almalinux 9 | 7.76.1-26.el9 | [ALSA-2023:6679](https://patchblox.com/security/data/fix/linux/alsa-2023-6679.md) | Nov 7, 2023 | | Linux | curl amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | curl ol 9 | 0:7.76.1-26.el9 | [ELSA-2023-6679](https://patchblox.com/security/data/fix/linux/elsa-2023-6679.md) | Nov 11, 2023 | | Linux | curl-debuginfo amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | curl-debugsource amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | curl-minimal RHEL 9 | 0:7.76.1-26.el9 | [RHSA-2023:6679](https://patchblox.com/security/data/fix/linux/rhsa-2023-6679.md) | Nov 7, 2023 | | Linux | curl-minimal almalinux 9 | 7.76.1-26.el9 | [ALSA-2023:6679](https://patchblox.com/security/data/fix/linux/alsa-2023-6679.md) | Nov 7, 2023 | | Linux | curl-minimal amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | curl-minimal ol 9 | 0:7.76.1-26.el9 | [ELSA-2023-6679](https://patchblox.com/security/data/fix/linux/elsa-2023-6679.md) | Nov 11, 2023 | | Linux | curl-minimal-debuginfo amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | libcurl RHEL 9 | 0:7.76.1-26.el9 | [RHSA-2023:6679](https://patchblox.com/security/data/fix/linux/rhsa-2023-6679.md) | Nov 7, 2023 | | Linux | libcurl almalinux 9 | 7.76.1-26.el9 | [ALSA-2023:6679](https://patchblox.com/security/data/fix/linux/alsa-2023-6679.md) | Nov 7, 2023 | | Linux | libcurl amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | libcurl ol 9 | 0:7.76.1-26.el9 | [ELSA-2023-6679](https://patchblox.com/security/data/fix/linux/elsa-2023-6679.md) | Nov 11, 2023 | | Linux | libcurl-debuginfo amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | libcurl-devel RHEL 9 | 0:7.76.1-26.el9 | [RHSA-2023:6679](https://patchblox.com/security/data/fix/linux/rhsa-2023-6679.md) | Nov 7, 2023 | | Linux | libcurl-devel almalinux 9 | 7.76.1-26.el9 | [ALSA-2023:6679](https://patchblox.com/security/data/fix/linux/alsa-2023-6679.md) | Nov 7, 2023 | | Linux | libcurl-devel amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | libcurl-devel ol 9 | 0:7.76.1-26.el9 | [ELSA-2023-6679](https://patchblox.com/security/data/fix/linux/elsa-2023-6679.md) | Nov 11, 2023 | | Linux | libcurl-minimal RHEL 9 | 0:7.76.1-26.el9 | [RHSA-2023:6679](https://patchblox.com/security/data/fix/linux/rhsa-2023-6679.md) | Nov 7, 2023 | | Linux | libcurl-minimal almalinux 9 | 7.76.1-26.el9 | [ALSA-2023:6679](https://patchblox.com/security/data/fix/linux/alsa-2023-6679.md) | Nov 7, 2023 | | Linux | libcurl-minimal amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | libcurl-minimal ol 9 | 0:7.76.1-26.el9 | [ELSA-2023-6679](https://patchblox.com/security/data/fix/linux/elsa-2023-6679.md) | Nov 11, 2023 | | Linux | libcurl-minimal-debuginfo amzn 2023 | 8.0.1-1.amzn2023 | [ALAS2023-2023-193](https://patchblox.com/security/data/fix/linux/alas2023-2023-193.md) | Jun 5, 2023 | | Linux | libcurl3-gnutls Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.24 | [libcurl3-gnutls 7.58.0-2ubuntu3.24](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl3-gnutls-7.58.0-2ubuntu3.24.md) | Mar 19, 2023 | | Linux | libcurl3-gnutls Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.18 | [libcurl3-gnutls 7.68.0-1ubuntu2.18](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl3-gnutls-7.68.0-1ubuntu2.18.md) | Mar 19, 2023 | | Linux | libcurl3-gnutls Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.10 | [libcurl3-gnutls 7.81.0-1ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcurl3-gnutls-7.81.0-1ubuntu1.10.md) | Mar 19, 2023 | | Linux | libcurl3-nss Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.24 | [libcurl3-nss 7.58.0-2ubuntu3.24](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl3-nss-7.58.0-2ubuntu3.24.md) | Mar 19, 2023 | | Linux | libcurl3-nss Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.18 | [libcurl3-nss 7.68.0-1ubuntu2.18](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl3-nss-7.68.0-1ubuntu2.18.md) | Mar 19, 2023 | | Linux | libcurl3-nss Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.10 | [libcurl3-nss 7.81.0-1ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcurl3-nss-7.81.0-1ubuntu1.10.md) | Mar 19, 2023 | | Linux | libcurl4 Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.24 | [libcurl4 7.58.0-2ubuntu3.24](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl4-7.58.0-2ubuntu3.24.md) | Mar 19, 2023 | | Linux | libcurl4 Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.18 | [libcurl4 7.68.0-1ubuntu2.18](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl4-7.68.0-1ubuntu2.18.md) | Mar 19, 2023 | | Linux | libcurl4 Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.10 | [libcurl4 7.81.0-1ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcurl4-7.81.0-1ubuntu1.10.md) | Mar 19, 2023 | --- Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.