# CVE-2022-23959: varnish: Varnish Cache is a high-performance HTTP accelerator

CVE-2022-23959 is fixed in 6 products on 1 platform, first by libvarnishapi1 5.2.1-1ubuntu0.1, released January 25, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-23959
- Priority: High
- CVSS: 9.1 (Important)
- EPSS: 0.0201
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 25, 2022

## Description

Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page over and over again, giving the website a significant speed up.  Security Fix(es):  * varnish: HTTP/1 request smuggling vulnerability (CVE-2022-23959)  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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libvarnishapi1 Ubuntu 18.04.6 LTS (bionic) | 5.2.1-1ubuntu0.1 | [libvarnishapi1 5.2.1-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libvarnishapi1-5.2.1-1ubuntu0.1.md) | Jan 25, 2022 |
| Linux | libvarnishapi2 Ubuntu 20.04 LTS (focal) | 6.2.1-2ubuntu0.1 | [libvarnishapi2 6.2.1-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libvarnishapi2-6.2.1-2ubuntu0.1.md) | Jan 25, 2022 |
| Linux | libvarnishapi2 Ubuntu 22.04.1 LTS (jammy) | 6.6.1-1ubuntu0.2 | [libvarnishapi2 6.6.1-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libvarnishapi2-6.6.1-1ubuntu0.2.md) | Jan 25, 2022 |
| Linux | varnish Debian 12.15 (bookworm) | 7.1.0-5 | [DEBIAN-CVE-2022-23959](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23959.md) | Jan 26, 2022 |
| Linux | varnish Debian 13.5 (trixie) | 7.1.0-5 | [DEBIAN-CVE-2022-23959](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23959.md) | Jan 26, 2022 |
| Linux | varnish RHEL 8 | 0:6.0.8-1.module+el8.5.0+14089+03a0c2cc.1 | [RHSA-2022:0418](https://patchblox.com/security/data/fix/linux/rhsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish Ubuntu 18.04.6 LTS (bionic) | 5.2.1-1ubuntu0.1 | [varnish 5.2.1-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-varnish-5.2.1-1ubuntu0.1.md) | Jan 25, 2022 |
| Linux | varnish Ubuntu 20.04 LTS (focal) | 6.2.1-2ubuntu0.1 | [varnish 6.2.1-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-varnish-6.2.1-2ubuntu0.1.md) | Jan 25, 2022 |
| Linux | varnish Ubuntu 22.04.1 LTS (jammy) | 6.6.1-1ubuntu0.2 | [varnish 6.6.1-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-varnish-6.6.1-1ubuntu0.2.md) | Jan 25, 2022 |
| Linux | varnish almalinux 8 | 6.0.8-1.module_el8.5.0+2620+03a0c2cc.1 | [ALSA-2022:0418](https://patchblox.com/security/data/fix/linux/alsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish ol 8 | 0:6.0.8-1.module+el8.5.0+20491+1af4e193.1 | [ELSA-2022-0418](https://patchblox.com/security/data/fix/linux/elsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish rocky 8 | 0:6.0.8-1.module+el8.5.0+736+fec10e21.1 | [RLSA-2022:0418](https://patchblox.com/security/data/fix/linux/rlsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-devel RHEL 8 | 0:6.0.8-1.module+el8.5.0+14089+03a0c2cc.1 | [RHSA-2022:0418](https://patchblox.com/security/data/fix/linux/rhsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-devel almalinux 8 | 6.0.8-1.module_el8.5.0+76+a10ffa55 | [ALSA-2022:0418](https://patchblox.com/security/data/fix/linux/alsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-devel ol 8 | 0:6.0.8-1.module+el8.5.0+20491+1af4e193.1 | [ELSA-2022-0418](https://patchblox.com/security/data/fix/linux/elsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-docs RHEL 8 | 0:6.0.8-1.module+el8.5.0+14089+03a0c2cc.1 | [RHSA-2022:0418](https://patchblox.com/security/data/fix/linux/rhsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-docs almalinux 8 | 6.0.8-1.module_el8.5.0+2620+03a0c2cc.1 | [ALSA-2022:0418](https://patchblox.com/security/data/fix/linux/alsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-docs ol 8 | 0:6.0.8-1.module+el8.5.0+20491+1af4e193.1 | [ELSA-2022-0418](https://patchblox.com/security/data/fix/linux/elsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-modules RHEL 8 | 0:0.15.0-6.module+el8.5.0+11976+0b4af72d | [RHSA-2022:0418](https://patchblox.com/security/data/fix/linux/rhsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-modules almalinux 8 | 0.15.0-6.module_el8.5.0+2620+03a0c2cc | [ALSA-2022:0418](https://patchblox.com/security/data/fix/linux/alsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-modules ol 8 | 0:0.15.0-6.module+el8.5.0+20320+0b4af72d | [ELSA-2022-0418](https://patchblox.com/security/data/fix/linux/elsa-2022-0418.md) | Feb 3, 2022 |
| Linux | varnish-modules rocky 8 | 0:0.15.0-6.module+el8.5.0+677+2a78a869 | [RLSA-2022:0418](https://patchblox.com/security/data/fix/linux/rlsa-2022-0418.md) | Feb 3, 2022 |

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