Updated rpm packages that fix two security issues are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The RPM Package Manager (RPM) is a powerful command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages. Each software package consists of an archive of files along with information about the package such as its version, description, and other information.

It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely.
Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation.
(CVE-2013-6435)

It was found that RPM could encounter an integer overflow, leading to a stack-based buffer overflow, while parsing a crafted CPIO header in the payload section of an RPM file. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation. (CVE-2014-8118)

These issues were discovered by Florian Weimer of Red Hat Product Security.

All rpm users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running applications linked against the RPM library must be restarted for this update to take effect.

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2479-1 advisory.

    Florian Weimer discovered that RPM incorrectly handled temporary files. A local attacker could use this     issue to execute arbitrary code. (CVE-2013-6435)

    Florian Weimer discovered that RPM incorrectly handled certain CPIO headers. If a user or automated system     were tricked into installing a malicious package file, a remote attacker could use this issue to cause RPM     to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-8118)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated rpm packages fix security vulnerabilities :

It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely.
Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation (CVE-2013-6435).

It was found that RPM could encounter an integer overflow, leading to a stack-based buffer overflow, while parsing a crafted CPIO header in the payload section of an RPM file. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation (CVE-2014-8118).

Several vulnerabilities have been fixed in rpm :

CVE-2014-8118

Fix integer overflow which allowed remote attackers to execute arbitrary code.

CVE-2013-6435

Prevent remote attackers from executing arbitrary code via crafted RPM files.

CVE-2012-0815

Fix denial of service and possible code execution via negative value in region offset in crafted RPM files.

CVE-2012-0060 and CVE-2012-0061

Prevent denial of service (crash) and possibly execute arbitrary code execution via an invalid region tag in RPM files.

We recommend that you upgrade your rpm packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

- Add check against malicious CPIO file name size

    - Fix race condidition where unchecked data is exposed       in the file system

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Two vulnerabilities have been discovered in the RPM package manager.

  - CVE-2013-6435     Florian Weimer discovered a race condition in package     signature validation.

  - CVE-2014-8118     Florian Weimer discovered an integer overflow in parsing     CPIO headers which might result in the execution of     arbitrary code.

The remote host is affected by the vulnerability described in GLSA-201811-22 (RPM: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in RPM. Please review the       CVE identifiers referenced below for details.
  Impact :

    A remote attacker, by enticing the user to process a specially crafted       RPM file, could escalate privileges, execute arbitrary code, or cause a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

The remote NewStart CGSL host, running version MAIN 6.06, has rpm packages installed that are affected by multiple vulnerabilities:

  - Integer overflow in RPM 4.12 and earlier allows remote attackers to execute arbitrary code via a crafted     CPIO header in the payload section of an RPM file, which triggers a stack-based buffer overflow.
    (CVE-2014-8118)

  - Race condition in RPM 4.11.1 and earlier allows remote attackers to execute arbitrary code via a crafted     RPM file whose installation extracts the contents to temporary files before validating the signature, as     demonstrated by installing a file in the /etc/cron.d directory. (CVE-2013-6435)

  - RPM 4.4.x through 4.9.x, probably before 4.9.1.2, allows remote attackers to cause a denial of service     (memory corruption) and possibly execute arbitrary code via an rpm package with crafted headers and     offsets that are not properly handled when a package is queried or installed, related to (1) the     regionSwab function, (2) the headerLoad function, and (3) multiple functions in rpmio/rpmpgp.c.
    (CVE-2011-3378)

  - RPM before 4.9.1.3 does not properly validate region tags, which allows remote attackers to cause a denial     of service (crash) and possibly execute arbitrary code via an invalid region tag in a package header to     the (1) headerLoad, (2) rpmReadSignature, or (3) headerVerify function. (CVE-2012-0060)

  - The headerLoad function in lib/header.c in RPM before 4.9.1.3 does not properly validate region tags,     which allows user-assisted remote attackers to cause a denial of service (crash) and possibly execute     arbitrary code via a large region size in a package header. (CVE-2012-0061)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It was found that RPM could encounter an integer overflow, leading to a stack-based overflow, while parsing a crafted CPIO header in the payload section of an RPM file. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation. (CVE-2014-8118)

It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely.
Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation.
Red Hat has published an excellent analysis of this issue.
(CVE-2013-6435)

It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely.
Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation.
(CVE-2013-6435)

It was found that RPM could encounter an integer overflow, leading to a stack-based buffer overflow, while parsing a crafted CPIO header in the payload section of an RPM file. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation. (CVE-2014-8118)

All running applications linked against the RPM library must be restarted for this update to take effect.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
79877	CentOS 7 : rpm (CESA-2014:1976)	Nessus	CentOS Local Security Checks	2014/12/15	2021/1/4	critical
80854	Ubuntu 14.04 LTS : RPM vulnerabilities (USN-2479-1)	Nessus	Ubuntu Local Security Checks	2015/1/20	2024/8/27	critical
81939	Mandriva Linux Security Advisory : rpm (MDVSA-2015:056)	Nessus	Mandriva Local Security Checks	2015/3/19	2021/1/6	critical
82123	Debian DLA-140-1 : rpm security update	Nessus	Debian Local Security Checks	2015/3/26	2021/1/11	critical
79996	Mandriva Linux Security Advisory : rpm (MDVSA-2014:251)	Nessus	Mandriva Local Security Checks	2014/12/15	2021/1/6	critical
80065	Fedora 21 : rpm-4.12.0.1-4.fc21 (2014-16890)	Nessus	Fedora Local Security Checks	2014/12/17	2021/1/11	critical
80288	Fedora 20 : rpm-4.11.3-2.fc20 (2014-16838)	Nessus	Fedora Local Security Checks	2014/12/30	2021/1/11	critical
80573	Debian DSA-3129-1 : rpm - security update	Nessus	Debian Local Security Checks	2015/1/19	2021/1/11	critical
119276	GLSA-201811-22 : RPM: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2018/11/29	2024/7/18	high
266279	NewStart CGSL MAIN 6.06 : rpm Multiple Vulnerabilities (NS-SA-2025-0219)	Nessus	NewStart CGSL Local Security Checks	2025/9/30	2025/9/30	critical
79842	Amazon Linux AMI : rpm (ALAS-2014-458)	Nessus	Amazon Linux Local Security Checks	2014/12/10	2018/11/19	critical
80016	Scientific Linux Security Update : rpm on SL7.x x86_64 (20141209)	Nessus	Scientific Linux Local Security Checks	2014/12/15	2021/1/14	critical

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