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CVE-2021-35940

Published: 23 August 2021

An out-of-bounds array read in the apr_time_exp*() functions was fixed in the Apache Portable Runtime 1.6.3 release (CVE-2017-12613). The fix for this issue was not carried forward to the APR 1.7.x branch, and hence version 1.7.0 regressed compared to 1.6.3 and is vulnerable to the same issue.

Notes

AuthorNote
leosilva
the fix was removed in 1.7.x branches, but it is addressed
in 1.6.x and later.
xenial and trusty/esm are affected.

Priority

Medium

Cvss 3 Severity Score

7.1

Score breakdown

Status

Package Release Status
apr
Launchpad, Ubuntu, Debian
hirsute
Released (1.7.0-6ubuntu0.1)
trusty
Released (1.5.0-1ubuntu0.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
bionic Not vulnerable

focal Not vulnerable

impish
Released (1.7.0-6ubuntu1)
jammy
Released (1.7.0-6ubuntu1)
xenial
Released (1.5.2-3ubuntu0.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (1.7.0-7)

Severity score breakdown

Parameter Value
Base score 7.1
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H