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CVE-2015-2774

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections...

5.9 MediumFix available

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

1.90%Up 0.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.9

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Record
CVE-2015-2774
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
CVE List No score

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Record
CVE-2015-2774
Updated
2026-11-02
EUVDEUVD-2015-2864 No score

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Record
EUVD-2015-2864
Updated
2026-11-03
GitHub AdvisoriesGHSA-x7g5-r7mw-4gvx 5.9

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections...

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Record
GHSA-x7g5-r7mw-4gvx
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
OSV 5.9

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Record
CVE-2015-2774
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2015-2774 5.9

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Record
DEBIAN-CVE-2015-2774
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2015-2774 5.9

Erlang/OTP before 18.0-rc1 does not properly check CBC padding bytes when terminating connections, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a variant of CVE-2014-3566 (aka POODLE).

Record
UBUNTU-CVE-2015-2774
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVMGASA-2015-0192 No score

Updated erlang packages fix CVE-2015-2774

Updated erlang packages fix security vulnerability:

Erlang's TLS-1.0 implementation failed to check padding bytes, leaving it vulnerable to an issue similar to POODLE (CVE-2015-2774).

Record
MGASA-2015-0192
Updated
2026-11-02
OSVUSN-3571-1 No score

erlang vulnerabilities

It was discovered that the Erlang FTP module incorrectly handled certain CRLF sequences. A remote attacker could possibly use this issue to inject arbitrary FTP commands. This issue only affected Ubuntu 14.04 LTS. (CVE-2014-1693)

It was discovered that Erlang incorrectly checked CBC padding bytes. A remote attacker could possibly use this issue to perform a padding oracle attack and decrypt traffic. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-2774)

It was discovered that Erlang incorrectly handled certain regular expressions. A remote attacker could possibly use this issue to cause Erlang to crash, resulting in a denial of service, or execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-10253)

Hanno Böck, Juraj Somorovsky and Craig Young discovered that the Erlang otp TLS server incorrectly handled error reporting. A remote attacker could possibly use this issue to perform a variation of the Bleichenbacher attack and decrypt traffic or sign messages. (CVE-2017-1000385)

Record
USN-3571-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
erlang
Debian:12
before 1:17.3-dfsg-4
1:17.3-dfsg-4
erlang
Debian:13
before 1:17.3-dfsg-4
1:17.3-dfsg-4
erlang
Debian:14
before 1:17.3-dfsg-4
1:17.3-dfsg-4
erlang
Mageia:4
before R16B02-2.2.mga4
R16B02-2.2.mga4
erlang
Ubuntu:14.04:LTS
before 1:16.b.3-dfsg-1ubuntu2.2, plus listed versions
1:16.b.1-dfsg-4ubuntu11:16.b.2-dfsg-1ubuntu11:16.b.2-dfsg-2ubuntu11:16.b.3-dfsg-1ubuntu11:16.b.3-dfsg-1ubuntu21:16.b.3-dfsg-1ubuntu2.1
1:16.b.3-dfsg-1ubuntu2.2
erlang
Ubuntu:14.04:LTS
From an advisory covering 4 CVEs
before 1:16.b.3-dfsg-1ubuntu2.2, plus listed versions
1:16.b.1-dfsg-4ubuntu11:16.b.2-dfsg-1ubuntu11:16.b.2-dfsg-2ubuntu11:16.b.3-dfsg-1ubuntu11:16.b.3-dfsg-1ubuntu21:16.b.3-dfsg-1ubuntu2.1
1:16.b.3-dfsg-1ubuntu2.2
erlang
Ubuntu:16.04:LTS
From an advisory covering 4 CVEs
before 1:18.3-dfsg-1ubuntu3.1, plus listed versions
1:18.0-dfsg-1ubuntu11:18.0-dfsg-1ubuntu21:18.2-dfsg-2ubuntu11:18.3-dfsg-1ubuntu11:18.3-dfsg-1ubuntu21:18.3-dfsg-1ubuntu3
1:18.3-dfsg-1ubuntu3.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-2774 is a medium vulnerability (CVSS 5.9) in Erlang Erlang\/otp, published May 5, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.90%, the 79th percentile. Fixed in erlang 1:17.3-dfsg-4.

References

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