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HistoryApr 30, 2024 - 9:29 p.m.

[SECURITY] [DLA 3804-1] nghttp2 security update

2024-04-3021:29:26
lists.debian.org
10
nghttp2
denial of service
excessive cpu usage
http/2
debian 10 buster
security update

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.2%


Debian LTS Advisory DLA-3804-1 [email protected]
https://www.debian.org/lts/security/ Guilhem Moulin
April 30, 2024 https://wiki.debian.org/LTS

Package : nghttp2
Version : 1.36.0-2+deb10u3
CVE ID : CVE-2024-28182
Debian Bug : 1068415

Bartek Nowotarskis discovered that nghttp2, a set of programs
implementing the HTTP/2, keeps reading CONTINUATION frames even after a
stream is reset to keep HPACK context in sync. This causes excessive
CPU usage to decode HPACK stream, which could lead to Denial of Service.

The issue is mitigated by limiting the number of CONTINUATION frames it
can accept after a HEADERS frame. The limit is configurable and
defaults to 8.

For Debian 10 buster, this problem has been fixed in version
1.36.0-2+deb10u3.

We recommend that you upgrade your nghttp2 packages.

For the detailed security status of nghttp2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/nghttp2

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: PGP signature

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.2%