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varnish

state of the art, high-performance web accelerator

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general
  • source: varnish (main)
  • version: 7.7.3-1
  • maintainer: Varnish Package Maintainers (DMD)
  • uploaders: Marco d'Itri [DMD] – Stig Sandbeck Mathisen [DMD]
  • arch: all any
  • std-ver: 4.7.2.0
  • VCS: Git (Browse, QA)
versions [more versions can be listed by madison] [old versions available from snapshot.debian.org]
[pool directory]
  • o-o-stable: 6.5.1-1+deb11u3
  • o-o-sec: 6.5.1-1+deb11u5
  • oldstable: 7.1.1-2+deb12u1
  • old-sec: 7.1.1-2+deb12u1
  • stable: 7.7.0-3
  • testing: 7.7.3-1
  • unstable: 7.7.3-1
versioned links
  • 6.5.1-1+deb11u3: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 6.5.1-1+deb11u5: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 7.1.1-2+deb12u1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 7.7.0-3: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 7.7.3-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
binaries
  • libvarnishapi-dev
  • libvarnishapi3
  • varnish
  • varnish-doc
action needed
Marked for autoremoval on 26 October due to opentracing-cpp: #1113366 high
Version 7.7.3-1 of varnish is marked for autoremoval from testing on Sun 26 Oct 2025. It depends (transitively) on opentracing-cpp, affected by #1113366. You should try to prevent the removal by fixing these RC bugs.
Created: 2025-09-26 Last update: 2025-10-01 20:02
A new upstream version is available: 8.0.0 high
A new upstream version 8.0.0 is available, you should consider packaging it.
Created: 2025-09-18 Last update: 2025-10-01 19:31
3 security issues in buster high

There are 3 open security issues in buster.

2 important issues:
  • CVE-2023-44487: The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
  • CVE-2024-30156: Varnish Cache before 7.3.2 and 7.4.x before 7.4.3 (and before 6.0.13 LTS), and Varnish Enterprise 6 before 6.0.12r6, allows credits exhaustion for an HTTP/2 connection control flow window, aka a Broke Window Attack.
1 issue postponed or untriaged:
  • CVE-2019-20637: (needs triaging) An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the connection workspace, such as data structures associated with previous requests within this connection or VCL-related temporary headers.
Created: 2023-11-17 Last update: 2024-04-05 18:00
Fails to build during reproducibility testing normal
A package building reproducibly enables third parties to verify that the source matches the distributed binaries. It has been identified that this source package produced different results, failed to build or had other issues in a test environment. Please read about how to improve the situation!
Created: 2025-09-20 Last update: 2025-10-01 19:32
1 low-priority security issue in trixie low

There is 1 open security issue in trixie.

1 issue left for the package maintainer to handle:
  • CVE-2025-8671: (needs triaging) A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service (DoS). By opening streams and then rapidly triggering the server to reset them—using malformed frames or flow control errors—an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.

You can find information about how to handle this issue in the security team's documentation.

Created: 2025-08-14 Last update: 2025-09-30 21:00
debian/patches: 3 patches to forward upstream low

Among the 3 debian patches available in version 7.7.3-1 of the package, we noticed the following issues:

  • 3 patches where the metadata indicates that the patch has not yet been forwarded upstream. You should either forward the patch upstream or update the metadata to document its real status.
Created: 2023-02-26 Last update: 2025-08-25 12:02
No known security issue in bookworm wishlist

There are 3 open security issues in bookworm.

3 ignored issues:
  • CVE-2025-8671: A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service (DoS). By opening streams and then rapidly triggering the server to reset them—using malformed frames or flow control errors—an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.
  • CVE-2023-44487: The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
  • CVE-2024-30156: Varnish Cache before 7.3.2 and 7.4.x before 7.4.3 (and before 6.0.13 LTS), and Varnish Enterprise 6 before 6.0.12r6, allows credits exhaustion for an HTTP/2 connection control flow window, aka a Broke Window Attack.
Created: 2023-11-17 Last update: 2025-09-30 21:00
news
[rss feed]
  • [2025-09-20] varnish 7.7.3-1 MIGRATED to testing (Debian testing watch)
  • [2025-08-24] Accepted varnish 7.7.3-1 (source) into unstable (Marco d'Itri)
  • [2025-08-17] Accepted varnish 7.7.2-2 (source) into unstable (Marco d'Itri)
  • [2025-08-14] Accepted varnish 7.7.2-1 (source) into unstable (Marco d'Itri)
  • [2025-06-20] Accepted varnish 7.7.1-1 (source) into experimental (Marco d'Itri)
  • [2025-06-13] varnish 7.7.0-3 MIGRATED to testing (Debian testing watch)
  • [2025-06-08] Accepted varnish 7.7.0-3 (source) into unstable (Marco d'Itri)
  • [2025-05-28] Accepted varnish 6.5.1-1+deb11u5 (source) into oldstable-security (Markus Koschany)
  • [2025-05-23] varnish 7.7.0-2 MIGRATED to testing (Debian testing watch)
  • [2025-05-17] Accepted varnish 7.1.1-2+deb12u1 (source amd64 all) into proposed-updates (Debian FTP Masters) (signed by: Marco d'Itri)
  • [2025-05-13] Accepted varnish 7.1.1-2+deb12u1 (source amd64 all) into stable-security (Debian FTP Masters) (signed by: Marco d'Itri)
  • [2025-05-13] Accepted varnish 7.7.0-2 (source) into unstable (Marco d'Itri)
  • [2025-04-14] Accepted varnish 7.1.1-1.1+deb12u1 (source) into proposed-updates (Debian FTP Masters) (signed by: Adrian Bunk)
  • [2025-03-31] Accepted varnish 6.5.1-1+deb11u4 (source) into oldstable-security (Adrian Bunk)
  • [2025-03-26] varnish 7.7.0-1 MIGRATED to testing (Debian testing watch)
  • [2025-03-18] Accepted varnish 7.7.0-1 (source) into unstable (Marco d'Itri)
  • [2024-12-03] varnish 7.6.1-2 MIGRATED to testing (Debian testing watch)
  • [2024-11-29] Accepted varnish 7.6.1-2 (source) into unstable (Marco d'Itri)
  • [2024-11-18] Accepted varnish 7.6.1-1 (source) into experimental (Marco d'Itri)
  • [2024-10-27] varnish 7.6.0-2 MIGRATED to testing (Debian testing watch)
  • [2024-10-24] Accepted varnish 7.6.0-2 (source) into unstable (Marco d'Itri)
  • [2024-10-21] Accepted varnish 7.6.0-1 (source) into unstable (Marco d'Itri)
  • [2024-07-22] varnish 7.5.0-3 MIGRATED to testing (Debian testing watch)
  • [2024-07-19] Accepted varnish 7.5.0-3 (source) into unstable (Marco d'Itri)
  • [2024-07-09] varnish 7.5.0-2 MIGRATED to testing (Debian testing watch)
  • [2024-07-02] Accepted varnish 7.5.0-2 (source) into unstable (Marco d'Itri)
  • [2024-07-02] Accepted varnish 7.5.0-1 (source) into unstable (Marco d'Itri)
  • [2024-04-04] varnish 7.1.1-1.2 MIGRATED to testing (Debian testing watch)
  • [2024-04-01] Accepted varnish 7.1.1-1.2 (source) into unstable (Marco d'Itri)
  • [2023-12-23] varnish REMOVED from testing (Debian testing watch)
  • 1
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bugs [bug history graph]
  • all: 0
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  • version: 7.7.3-1
  • 11 bugs

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