Vulnerability · Published Apr 2, 2020 · Assigned by mitre
CVE-2020-11100
High 8.8
In plain English
A high-severity security flaw in the haproxy package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 61.6% (higher than 99.2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)61.6%top 0.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | haproxy | 2.1.4-r0 | ALPINE-CVE-2020-11100 |
| Alpine:v3.21 | haproxy | 2.1.4-r0 | ALPINE-CVE-2020-11100 |
| Alpine:v3.22 | haproxy | 2.1.4-r0 | ALPINE-CVE-2020-11100 |
| Alpine:v3.23 | haproxy | 2.1.4-r0 | ALPINE-CVE-2020-11100 |
| Alpine:v3.24 | haproxy | 2.1.4-r0 | ALPINE-CVE-2020-11100 |
| Debian:12 | haproxy | 2.0.13-2 | DEBIAN-CVE-2020-11100 |
| Debian:13 | haproxy | 2.0.13-2 | DEBIAN-CVE-2020-11100 |
| Debian:14 | haproxy | 2.0.13-2 | DEBIAN-CVE-2020-11100 |
Affected products (as reported)
References
- http://www.haproxy.org x_refsource_MISC
- https://www.haproxy.org/download/2.1/src/CHANGELOG x_refsource_CONFIRM
- https://lists.debian.org/debian-security-announce/2020/msg00052.html x_refsource_CONFIRM
- https://www.mail-archive.com/haproxy%40formilux.org/msg36876.html x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1819111 x_refsource_CONFIRM
- https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88 x_refsource_CONFIRM
- https://bugzilla.suse.com/show_bug.cgi?id=1168023 x_refsource_CONFIRM
- openSUSE-SU-2020:0444 vendor-advisory, x_refsource_SUSE
- FEDORA-2020-16cd111544 vendor-advisory, x_refsource_FEDORA
- DSA-4649 vendor-advisory, x_refsource_DEBIAN
- USN-4321-1 vendor-advisory, x_refsource_UBUNTU
- http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.html x_refsource_MISC
- FEDORA-2020-13fd8b1721 vendor-advisory, x_refsource_FEDORA
- GLSA-202012-22 vendor-advisory, x_refsource_GENTOO